Fix specs

app/assets/stylesheets/framework/selects.scss

@@ -61,7 +61,6 @@
   border: 1px solid $dropdown-border-color;
   min-width: 175px;
   color: $gl-text-color;
-  z-index: 999;
 }
 
 .select2-drop.select2-drop-above.select2-drop-active {

spec/ee/spec/features/projects/new_project_spec.rb

@@ -15,6 +15,7 @@ feature 'New project' do
 
       it 'shows mirror repository checkbox enabled', :js do
         visit new_project_path
+        find('#import-project-tab').trigger('click')
         first('.import_git').click
 
         expect(page).to have_unchecked_field('Mirror repository', disabled: false)