Hide emoji popup after multiple spaces or blank lines

Fixes #40620,#33678

app/assets/javascripts/gfm_auto_complete.js

@@ -131,9 +131,8 @@ class GfmAutoComplete {
       callbacks: {
         ...this.getDefaultCallbacks(),
         matcher(flag, subtext) {
-          const relevantText = subtext.trim().split(/\s/).pop();
           const regexp = new RegExp(`(?:[^${glRegexp.unicodeLetters}0-9:]|\n|^):([^:]*)$`, 'gi');
-          const match = regexp.exec(relevantText);
+          const match = regexp.exec(subtext);
 
           return match && match.length ? match[1] : null;
         },

changelogs/unreleased/fix-emoji-popup.yml

+---
+title: Hide emoji popup after multiple spaces
+merge_request:
+author: Jan Beckmann
+type: fixed