Comment 1 for bug 641330

Actually, I'm pretty sure this is about not being able to unshelve the
root, not a newly created subdir. Try:

bzr init foo
cd foo
touch a; bzr add a; bzr commit -m "a"
bzr mkdir dir
bzr shelve
bzr unshelve

I think that will work.

The problem is that you did this as the *first* action (without any
other commit) and it shelved the creation of the tree root.

Either:
 a) We shouldn't allow shelving the root
or
 b) We should support unshelving a new root

Now, if what I wrote also fails, then we have 2 bugs :). But what you posted here is a failure to unshelve a root-id change.