Run `grunt`.

dist/js/bootstrap.js

@@ -525,7 +525,9 @@ if (typeof jQuery === 'undefined') { throw new Error('Bootstrap\'s JavaScript re
         .removeClass('collapsing')
         .addClass('collapse in')[dimension]('')
       this.transitioning = 0
-      this.$element.trigger('shown.bs.collapse')
+      this.$element
+        .off($.support.transition.end + '.bs.collapse')
+        .trigger('shown.bs.collapse')
     }
 
     if (!$.support.transition) return complete.call(this)
@@ -533,7 +535,7 @@ if (typeof jQuery === 'undefined') { throw new Error('Bootstrap\'s JavaScript re
     var scrollSize = $.camelCase(['scroll', dimension].join('-'))
 
     this.$element
-      .one($.support.transition.end, $.proxy(complete, this))
+      .on($.support.transition.end + '.bs.collapse', $.proxy(complete, this))
       .emulateTransitionEnd(350)[dimension](this.$element[0][scrollSize])
   }