Integrator Reset Anomaly When in Reference Model

Using R2011b I find that if the external IC is selected on an integrator block and the block is inside a reference model, the integrator will always reinitialize when rerun no matter what is done with the external reset. If the integrator block is not inside a reference model it works as expected. So the problem is preventing reinitialization when desired (allowing the integrator to start from the xInitial value) but allowing initializtion to an external input when desired . . . all when the integrator is inside a reference model.