diff --git a/admin/javascript/LeftAndMain.EditForm.js b/admin/javascript/LeftAndMain.EditForm.js
index acb7e8480..231bc9f14 100644
--- a/admin/javascript/LeftAndMain.EditForm.js
+++ b/admin/javascript/LeftAndMain.EditForm.js
@@ -107,6 +107,7 @@
 				this._super();
 			},
 			onunmatch: function() {
+				this.changetracker('destroy');
 				this._super();
 			},