So this looks pretty awesome. I can see myself using it a lot. There is one workflow that I do with submodules, that i don't see how to do in subtrees:

clone a repo to the target dir. Add it as a submodule. Decide to play with a branch of the submodule, so switch to that branch in the cloned repo. Then if i decide to work with that, update my submodules, otherwise switch back.

Is that sort of workflow available in subtrees? How do I do it?