From 9d31d444d0b346b9b9ddb2c2192358a2db844e32 Mon Sep 17 00:00:00 2001
From: Quincy Morgan <quincy.morgan@icloud.com>
Date: Tue, 4 Feb 2020 12:09:54 -0500
Subject: [PATCH] Show only issues shared by all features on multiselection

---
 modules/core/validator.js | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/modules/core/validator.js b/modules/core/validator.js
index e07d77eda..e1c5f1dc9 100644
--- a/modules/core/validator.js
+++ b/modules/core/validator.js
@@ -195,11 +195,14 @@ export function coreValidator(context) {
             var entityIssueIDs = cache.issuesByEntityID[entityID];
             if (!entityIssueIDs) {
                 return acc;
-            } else {
-                return new Set([...acc, ...entityIssueIDs]);
             }
-        }, new Set());
-
+            if (!acc) {
+                return new Set(entityIssueIDs);
+            }
+            return new Set([...acc].filter(function(elem) {
+                return entityIssueIDs.has(elem);
+            }));
+        }, null) || [];
 
         var opts = options || {};