Added `@zeiv`s changes to fix awards search, including CHANGELOG where he is credited

CHANGELOG

@@ -8,6 +8,7 @@ v 8.12.2 (unreleased)
 v 8.12.1
   - Fix a memory leak in HTML::Pipeline::SanitizationFilter::WHITELIST
   - Fix issue with search filter labels not displaying
+  - Fix bug where 'Search results' repeated many times when a search in the emoji search form is cleared (Xavier Bick) (@zeiv)
 
 v 8.12.0
   - Update the rouge gem to 2.0.6, which adds highlighting support for JSX, Prometheus, and others. !6251

app/assets/javascripts/awards_handler.js

@@ -357,7 +357,7 @@
           $('ul.emoji-menu-search, h5.emoji-search').remove();
           if (term) {
             // Generate a search result block
-            h5 = $('<h5>').text('Search results');
+            h5 = $('<h5 class="emoji-search" />').text('Search results');
             found_emojis = _this.searchEmojis(term).show();
             ul = $('<ul>').addClass('emoji-menu-list emoji-menu-search').append(found_emojis);
             $('.emoji-menu-content ul, .emoji-menu-content h5').hide();