Prevent autocomplete search on refresh.

themes/bootstrap3/js/autocomplete.js

@@ -140,7 +140,7 @@
       input.keyup(function(event) {
         // Ignore navigation keys
         // - Ignore control functions
-        if (event.ctrlKey) {
+        if (event.ctrlKey || event.which === 17) {
           return;
         }
         // - Function keys (F1 - F15)
@@ -171,6 +171,10 @@
         }
       });
       input.keydown(function(event) {
+        // - Ignore control functions
+        if (event.ctrlKey || event.which === 17) {
+          return;
+        }
         var element = $.fn.autocomplete.element;
         var position = $(this).data('selected');
         switch (event.which) {