From 8659416af20ca7350896460080b32d512808dd9d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ky=E2=84=93e=20Hensel?= <k-yle@users.noreply.github.com>
Date: Sat, 22 Feb 2025 19:57:18 +1100
Subject: [PATCH] Fix duplicate values in the `source` field on the changeset
 page (#10799)

---
 modules/ui/changeset_editor.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/modules/ui/changeset_editor.js b/modules/ui/changeset_editor.js
index 5b078d6ea..ec489bf30 100644
--- a/modules/ui/changeset_editor.js
+++ b/modules/ui/changeset_editor.js
@@ -88,6 +88,7 @@ export function uiChangesetEditor(context) {
                     // based on the values used in recent changesets.
                     const recentSources = changesets
                         .flatMap((changeset) => changeset.tags.source?.split(';'))
+                        .filter(value => !sourceField.options.includes(value))
                         .filter(Boolean)
                         .map(title => ({ title, value: title, klass: 'raw-option' }));