Don't clear search box on search page when a new query is submitted

Users want to be able to see the current query

static/js/directives/ui/search-box/search-box.component.html

@@ -38,13 +38,12 @@
       </span>
     </div>
   </script>
-
   <input class="form-control" type="text" placeholder="search"
          ng-model="$ctrl.enteredQuery"
          typeahead="$ctrl.onTypeahead($event)"
          ta-display-key="name"
          ta-suggestion-tmpl="search-result-template"
-         ta-clear-on-select="true"
+         ta-clear-on-select="$ctrl.clearOnSearch"
          (ta-selected)="$ctrl.onSelected($event)"
          (ta-entered)="$ctrl.onEntered($event)">
   <span class="search-icon">