fixes #9735

mark changed couldn't be triggered without inititiator

javascript/src/Form.js

@@ -87,9 +87,11 @@ var QfqNS = QfqNS || {};
     };
 
     n.Form.prototype.markChanged = function (initiator) {
+        if(!!initiator) {
             if(initiator.classList.contains("qfq-skip-dirty")) {
                 return;
             }
+        }
         this.setFormChangedState();
         this.eventEmitter.emitEvent('form.changed', n.EventEmitter.makePayload(this, null));
     };