Merge branch 'dropdown-loading-class-add' into 'master'

Changes when loading indicator is added to dropdown

See merge request !9345

app/assets/javascripts/gl_dropdown.js

@@ -47,9 +47,10 @@
           }
           // Only filter asynchronously only if option remote is set
           if (this.options.remote) {
-            $inputContainer.parent().addClass('is-loading');
             clearTimeout(timeout);
             return timeout = setTimeout(function() {
+              $inputContainer.parent().addClass('is-loading');
+
               return this.options.query(this.input.val(), function(data) {
                 $inputContainer.parent().removeClass('is-loading');
                 return this.options.callback(data);

spec/features/projects/ref_switcher_spec.rb

@@ -20,6 +20,8 @@ feature 'Ref switcher', feature: true, js: true do
       input.set 'binary'
       wait_for_ajax
+      expect(find('.dropdown-content ul')).to have_selector('li', count: 6)
+
       page.within '.dropdown-content ul' do
         input.native.send_keys :enter
       end