Fixes bug where sometimes transitioned hidden elements would stay visible

src/definitions/modules/transition.js

@@ -283,6 +283,14 @@ $.fn.transition = function() {
               .addClass(className.transition)
               .addClass(className.hidden)
             ;
+            requestAnimationFrame(function() {
+              if($module.css('display') !== 'none') {
+                module.verbose('Overriding default display to hide element')
+                $module
+                  .css('display', 'none')
+                ;
+              }
+            })
           },
 
           visible: function() {

src/definitions/modules/transition.less

@@ -56,7 +56,7 @@
 
 /* Hidden */
 .ui.hidden.transition {
-  display: none !important;
+  display: none;
 }
 
 /* Visible */