Re: worktrees vs. alternates

> >
> > 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?