Merge branch 'winh-search-dropdowns' into 'master'

Make search dropdowns consistent

See merge request !13615

app/assets/javascripts/gl_dropdown.js

@@ -637,11 +637,15 @@ GitLabDropdown = (function() {
         value = this.options.id ? this.options.id(data) : data.id;
         fieldName = this.options.fieldName;
 
-        if (value) { value = value.toString().replace(/'/g, '\\\''); }
-
-        field = this.dropdown.parent().find("input[name='" + fieldName + "'][value='" + value + "']");
-        if (field.length) {
-          selected = true;
+        if (value) {
+          value = value.toString().replace(/'/g, '\\\'');
+          field = this.dropdown.parent().find(`input[name='${fieldName}'][value='${value}']`);
+          if (field.length) {
+            selected = true;
+          }
+        } else {
+          field = this.dropdown.parent().find(`input[name='${fieldName}']`);
+          selected = !field.length;
         }
       }
       // Set URL

app/assets/stylesheets/framework/dropdowns.scss

@@ -766,6 +766,7 @@
         box-shadow: none;
         padding: 8px 16px;
         text-align: left;
+        white-space: normal;
         width: 100%;
 
         // make sure the text color is not overriden

app/assets/stylesheets/pages/search.scss

@@ -190,6 +190,8 @@ input[type="checkbox"]:hover {
 }
 
 .search-holder {
+  @include new-style-dropdown;
+
   @media (min-width: $screen-sm-min) {
     display: -webkit-flex;
     display: flex;