Fixes #1916, onChange fires even when selected value is current value

src/definitions/modules/dropdown.js

@@ -965,19 +965,23 @@ $.fn.dropdown = function(parameters) {
                     module.verbose('Ambiguous dropdown value using strict type check', $choice, value);
                     if( optionValue === value ) {
                       $selectedItem = $(this);
+                      return true;
                     }
                     else if( !$selectedItem && optionText === value ) {
                       $selectedItem = $(this);
+                      return true;
                     }
                   }
                   else {
                     if( optionValue == value ) {
                       module.verbose('Found select item by value', optionValue, value);
                       $selectedItem = $(this);
+                      return true;
                     }
                     else if( !$selectedItem && optionText == value ) {
                       module.verbose('Found select item by text', optionText, value);
                       $selectedItem = $(this);
+                      return true;
                     }
                   }
                 })
@@ -1180,7 +1184,7 @@ $.fn.dropdown = function(parameters) {
               selectedText,
               selectedValue
             ;
-            if($selectedItem) {
+            if($selectedItem && !$selectedItem.hasClass(className.active) ) {
               module.debug('Setting selected menu item to', $selectedItem);
               module.remove.activeItem();
               module.remove.selectedItem();