getNumberOfChanges(oConnector, sReference) {
			return oConnector.loadFlexData({reference: sReference})
			.then(function(aResponses) {
				return aResponses.reduce(function(iNumberOfChanges, oResponse) {
					return iNumberOfChanges + oResponse.changes.length;
				}, 0);
			});
		}
Restores the original {@link sap.ui.fl.LrepConnector.createConnector} factory function.