Merge pull request #13928 from SGinTech/sgit_collapseEventOrder

Ensure that hidden event is sent when content is really hidden (collapsi...

js/collapse.js

@@ -97,9 +97,9 @@
     var complete = function () {
       this.transitioning = 0
       this.$element
-        .trigger('hidden.bs.collapse')
         .removeClass('collapsing')
         .addClass('collapse')
+        .trigger('hidden.bs.collapse')
     }
 
     if (!$.support.transition) return complete.call(this)