Comment 6 for bug 252894

I realize now I was unclear and not distinguishing between 2 things.

One is what is the parent branch. that is what ":parent" refers to.
The other is the repository of the parent branch (parent repository?) which is what one needs in the "switch" example.

As far as need goes, being able to refer to the parent branch (:parent) seems the more needed feature, but when switching branches from the same sever, being able to refer to the repository of the parent branch would be a convenience.