Merge branch 't/11400'

Author: Reinmar

CHANGES.md

@@ -13,6 +13,7 @@ Fixed Issues:
 * [#11058](http://dev.ckeditor.com/ticket/11058): [IE8] Fixed: Error when deleting a row.
 * [#11508](http://dev.ckeditor.com/ticket/11508): Fixed: htmlDataProcessor discovering protected attributes within other attributes' values.
 * [#11533](http://dev.ckeditor.com/ticket/11533): Widgets: Avoid recurring upcasts if DOM structure was modified during an upcast.
+* [#11400](http://dev.ckeditor.com/ticket/11400): Fixed [`domObject.removeAllListeners`](http://docs.ckeditor.com/#!/api/CKEDITOR.dom.domObject-method-removeAllListeners) does not remove custom listeners completely.
 
 ## CKEditor 4.3.2
 

core/dom/domobject.js

@@ -136,6 +136,10 @@ CKEDITOR.dom.domObject.prototype = ( function() {
 
 				delete nativeListeners[ eventName ];
 			}
+
+			// Remove events from events object so fire() method will not call
+			// listeners (#11400).
+			CKEDITOR.event.prototype.removeAllListeners.call( this );
 		}
 	};
 } )();