fnChange = function() {
			var oModel = oControl.getModel();
			oModel.checkUpdate(true);
			var oValue = oModel.getProperty("/value");
			oValue = deepClone(oValue, 500);
			that.setValue(oValue);
		}
Fired when translation popover opened in SimpleForm.
@experimental since 1.132
Disclaimer: this event is in a beta state - incompatible API changes may be done before its official public release. Use at your own discretion.