Issue #2665738 by droplet, zviryatko: jQuery Autocomplete applies "_renderItem" option only for first element on the page

core/misc/autocomplete.js

@@ -222,8 +222,9 @@
         });
         // Use jQuery UI Autocomplete on the textfield.
         $autocomplete.autocomplete(autocomplete.options)
-          .data('ui-autocomplete')
-          ._renderItem = autocomplete.options.renderItem;
+          .each(function() {
+            $(this).data('ui-autocomplete')._renderItem = autocomplete.options.renderItem;
+          });
       }
     },
     detach: function (context, settings, trigger) {