diff --git a/public/partials/anonymize.htm b/public/partials/anonymize.htm
index 9b5fc83..8e2a4e2 100644
--- a/public/partials/anonymize.htm
+++ b/public/partials/anonymize.htm
@@ -97,7 +97,7 @@
                   class="form-control"
                   id="branch"
                   name="branch"
-                  ng-model="branch"
+                  ng-model="source.branch"
                 >
                   <option
                     ng-repeat="b in branches"
@@ -128,7 +128,7 @@
                 class="form-control"
                 id="commit"
                 name="commit"
-                ng-model="commit"
+                ng-model="source.commit"
               />
               <small class="form-text text-muted"
                 >The commit to anonymize</small
@@ -333,7 +333,7 @@
                         class="form-control"
                         id="mode"
                         name="mode"
-                        ng-model="options.mode"
+                        ng-model="source.type"
                       >
                         <option value="GitHubStream" selected>Stream</option>
                         <option value="GitHubDownload">Download</option>
diff --git a/public/script/app.js b/public/script/app.js
index 68c5216..af265b1 100644
--- a/public/script/app.js
+++ b/public/script/app.js
@@ -616,10 +616,12 @@ angular
       $scope.repoId = "";
       $scope.terms = "";
       $scope.defaultTerms = "";
-      $scope.branch = "";
-
       $scope.branches = [];
-
+      source = {
+        type: "GitHubDownload",
+        branch: "",
+        commit: "",
+      };
       $scope.options = {
         expirationMode: "remove",
         expirationDate: new Date(),
@@ -628,7 +630,6 @@ angular
         pdf: true,
         notebook: true,
         link: true,
-        mode: "GitHubDownload",
       };
       $scope.options.expirationDate.setDate(
         $scope.options.expirationDate.getDate() + 90
@@ -662,8 +663,8 @@ angular
             async (res) => {
               $scope.repoUrl = "https://github.com/" + res.data.source.fullName;
 
-              $scope.terms = res.data.options.terms.join("\n");
-              $scope.branch = res.data.source.branch.name;
+              $scope.terms = res.data.options.terms.filter((f) => f).join("\n");
+              $scope.source = res.data.source;
               $scope.options = res.data.options;
               $scope.conference = res.data.conference;
               if (res.data.options.expirationDate) {
@@ -712,9 +713,13 @@ angular
       $scope.getRepositories();
 
       $scope.repoSelected = async () => {
-        $scope.terms = $scope.defaultTerms;
+        $scope.terms = $scope.defaultTerms.filter((f) => f);
         $scope.repoId = "";
-        $scope.branch = "";
+        $scope.source = {
+          type: "GitHubDownload",
+          branch: "",
+          commit: "",
+        };
 
         $scope.anonymize_readme = "";
         $scope.readme = "";
@@ -739,19 +744,19 @@ angular
       };
       $('[data-toggle="tooltip"]').tooltip();
 
-      $scope.$watch("branch", async (v) => {
+      $scope.$watch("source.branch", async (v) => {
         const selected = $scope.branches.filter(
-          (f) => f.name == $scope.branch
+          (f) => f.name == $scope.source.branch
         )[0];
         if ($scope.details && $scope.details.hasPage) {
           $scope.anonymize.page.$$element[0].disabled = false;
-          if ($scope.details.pageSource.branch != $scope.branch) {
+          if ($scope.details.pageSource.branch != $scope.source.branch) {
             $scope.anonymize.page.$$element[0].disabled = true;
           }
         }
 
         if (selected) {
-          $scope.commit = selected.commit;
+          $scope.source.commit = selected.commit;
           $scope.readme = selected.readme;
           await getReadme();
           anonymize();
@@ -786,12 +791,14 @@ angular
           { params: { force: force === true ? "1" : "0" } }
         );
         $scope.branches = branches.data;
-        if (!$scope.branch) {
-          $scope.branch = $scope.details.defaultBranch;
+        if (!$scope.source.branch) {
+          $scope.source.branch = $scope.details.defaultBranch;
         }
-        const selected = $scope.branches.filter((b) => b.name == $scope.branch);
+        const selected = $scope.branches.filter(
+          (b) => b.name == $scope.source.branch
+        );
         if (selected.length > 0) {
-          $scope.commit = selected[0].commit;
+          $scope.source.commit = selected[0].commit;
           $scope.readme = selected[0].readme;
         }
         $scope.$apply();
@@ -854,11 +861,17 @@ angular
         }
 
         content = content.replace(
-          new RegExp(`\\b${$scope.repoUrl}/blob/${$scope.branch}\\b`, "gi"),
+          new RegExp(
+            `\\b${$scope.repoUrl}/blob/${$scope.source.branch}\\b`,
+            "gi"
+          ),
           `https://anonymous.4open.science/r/${$scope.repoId}`
         );
         content = content.replace(
-          new RegExp(`\\b${$scope.repoUrl}/tree/${$scope.branch}\\b`, "gi"),
+          new RegExp(
+            `\\b${$scope.repoUrl}/tree/${$scope.source.branch}\\b`,
+            "gi"
+          ),
           `https://anonymous.4open.science/r/${$scope.repoId}`
         );
         content = content.replace(
@@ -934,12 +947,14 @@ angular
         $scope.options.pageSource = $scope.details.pageSource;
         return {
           repoId: $scope.repoId,
-          terms: $scope.terms.trim().split("\n"),
+          terms: $scope.terms
+            .trim()
+            .split("\n")
+            .filter((f) => f),
           fullName: `${o.owner}/${o.repo}`,
           repository: $scope.repoUrl,
           options: $scope.options,
-          branch: $scope.branch,
-          commit: $scope.commit,
+          source: $scope.source,
           conference: $scope.conference,
         };
       }
diff --git a/src/Repository.ts b/src/Repository.ts
index bfeaa15..db05a5f 100644
--- a/src/Repository.ts
+++ b/src/Repository.ts
@@ -170,7 +170,7 @@ export default class Repository {
     if (this._model.status == "ready") return;
     await this.updateStatus("preparing");
     await this.files();
-    await this.updateStatus("ready");
+    return this.updateStatus("ready");
   }
 
   /**
@@ -179,7 +179,7 @@ export default class Repository {
   async countView() {
     this._model.lastView = new Date();
     this._model.pageView = (this._model.pageView || 0) + 1;
-    await this._model.save();
+    return this._model.save();
   }
 
   /**
@@ -190,21 +190,21 @@ export default class Repository {
   async updateStatus(status: RepositoryStatus, errorMessage?: string) {
     this._model.status = status;
     this._model.errorMessage = errorMessage;
-    await this._model.save();
+    return this._model.save();
   }
 
   /**
    * Expire the repository
    */
   async expire() {
-    this.resetSate("expired");
+    return this.resetSate("expired");
   }
 
   /**
    * Remove the repository
    */
   async remove() {
-    this.resetSate("removed");
+    return this.resetSate("removed");
   }
 
   /**
diff --git a/src/routes/repository-private.ts b/src/routes/repository-private.ts
index a83412c..f56932a 100644
--- a/src/routes/repository-private.ts
+++ b/src/routes/repository-private.ts
@@ -13,22 +13,6 @@ import Repository from "../Repository";
 
 const router = express.Router();
 
-// get repository information
-router.get("/:repoId/", async (req: express.Request, res: express.Response) => {
-  const repo = await getRepo(req, res, { nocheck: false });
-  if (!repo) return;
-
-  try {
-    const user = await getUser(req);
-    if (user.username != repo.model.owner) {
-      return res.status(401).send({ error: "not_authorized" });
-    }
-    res.json((await db.getRepository(req.params.repoId)).toJSON());
-  } catch (error) {
-    handleError(error, res);
-  }
-});
-
 // user needs to be connected for all user API
 router.use(ensureAuthenticated);
 
@@ -71,7 +55,7 @@ router.post("/claim", async (req: express.Request, res: express.Response) => {
   }
 });
 
-// refresh a repository
+// refresh repository
 router.post(
   "/:repoId/refresh",
   async (req: express.Request, res: express.Response) => {
@@ -183,23 +167,26 @@ function validateNewRepo(repoUpdate) {
   ) {
     throw new Error("invalid_repoId");
   }
-  if (!repoUpdate.branch) {
+  if (!repoUpdate.source.branch) {
     throw new Error("branch_not_specified");
   }
+  if (!repoUpdate.source.commit) {
+    throw new Error("commit_not_specified");
+  }
   if (!repoUpdate.options) {
     throw new Error("options_not_provided");
   }
   if (!Array.isArray(repoUpdate.terms)) {
     throw new Error("invalid_terms_format");
   }
-  if (!/^[a-f0-9]+$/.test(repoUpdate.commit)) {
+  if (!/^[a-f0-9]+$/.test(repoUpdate.source.commit)) {
     throw new Error("invalid_commit_format");
   }
 }
 
 function updateRepoModel(model: IAnonymizedRepositoryDocument, repoUpdate) {
-  model.source.commit = repoUpdate.commit;
-  model.source.branch = repoUpdate.branch;
+  model.source.commit = repoUpdate.source.commit;
+  model.source.branch = repoUpdate.source.branch;
   model.conference = repoUpdate.conference;
   model.options = {
     terms: repoUpdate.terms,
@@ -216,6 +203,23 @@ function updateRepoModel(model: IAnonymizedRepositoryDocument, repoUpdate) {
     pageSource: repoUpdate.options.pageSource,
   };
 }
+
+// get repository information
+router.get("/:repoId/", async (req: express.Request, res: express.Response) => {
+  try {
+    const repo = await getRepo(req, res, { nocheck: true });
+    if (!repo) throw new Error("repo_not_found");
+
+    const user = await getUser(req);
+    if (user.username != repo.model.owner) {
+      return res.status(401).send({ error: "not_authorized" });
+    }
+    res.json((await db.getRepository(req.params.repoId)).toJSON());
+  } catch (error) {
+    handleError(error, res);
+  }
+});
+
 // update a repository
 router.post(
   "/:repoId/",
@@ -233,17 +237,15 @@ router.post(
 
       validateNewRepo(repoUpdate);
 
-      if (repoUpdate.commit != repo.model.source.commit) {
+      if (repoUpdate.source.commit != repo.model.source.commit) {
         repo.model.anonymizeDate = new Date();
-        repo.model.source.commit = repoUpdate.commit;
+        repo.model.source.commit = repoUpdate.source.commit;
         await repo.remove();
       }
 
       updateRepoModel(repo.model, repoUpdate);
 
       await repo.updateStatus("preparing");
-
-      await repo.model.save();
       res.send("ok");
       new Repository(repo.model).anonymize();
     } catch (error) {
diff --git a/src/source/GitHubBase.ts b/src/source/GitHubBase.ts
index 94c8683..e2da5dc 100644
--- a/src/source/GitHubBase.ts
+++ b/src/source/GitHubBase.ts
@@ -77,7 +77,8 @@ export default abstract class GitHubBase {
     return {
       type: this.type,
       fullName: this.githubRepository.fullName?.toString(),
-      branch: this.branch,
+      branch: this.branch.name,
+      commit: this.branch.commit,
     };
   }
 }