src/sap.ui.rta/src/sap/ui/rta/ControlTreeModifier.js
function (oControl, sPropertyName) {
			var mOldBindingInfos = oControl.getBindingInfo(sPropertyName);

			JsControlTreeModifier.unbindProperty.apply(this, arguments);

			if (mOldBindingInfos){
				this._saveUndoOperation("bindProperty", [oControl, sPropertyName, mOldBindingInfos]);
			}
		}
function (oControl, sPropertyName) {
			var mOldBindingInfos = oControl.getBindingInfo(sPropertyName);

			JsControlTreeModifier.unbindProperty.apply(this, arguments);

			if (mOldBindingInfos){
				this._saveUndoOperation("bindProperty", [oControl, sPropertyName, mOldBindingInfos]);
			}
		}
function ( oControl , sPropertyName ) { var mOldBindingInfos = oControl . getBindingInfo ( sPropertyName ) ; JsControlTreeModifier . unbindProperty . apply ( this , arguments ) ; if ( mOldBindingInfos ) { this . _saveUndoOperation ( "bindProperty" , [ oControl , sPropertyName , mOldBindingInfos ] ) ; } }
Unbind a property and record bindProperty as undo operation
@param  {sap.ui.core.Control} oControl  The control containing the property
@param  {string} sPropertyName  The property to be unbound
Unbind a property and record bindProperty as undo operation