> > You can also do periodic maintenance like: > > 1. Copy each ref in the forked repositories into the parent repository > (e.g., giving each child that borrows from the parent its own > hierarchy in refs/remotes/<child>/*). Can you just copy? I assume the mother repo doesn't know about all objects, hence by copying the ref, we have a "spotty" history. And to improve copying could permanent symlinking be used instead?