Recompute Parent without leaving Cluster

Is there a way to recompute the parent patch if I work inside a cluster? 

I have a very large patch I am working on and have geometries referenced in the parent patch. Now, if I am working inside the cluster and change/move/etc. the geometry in Rhino it does not recompute properly, because the geometry that is fed into the cluster is not updated.

There should be at least a manual way to do this!? Its very annoying I have to keep "save&exit" the cluster just to go straight back into it, so the geometry is updated.

David, any reason for this behaviour?