Moving a directory into another fails

I cloned a git project. Then in the original I did mkdir for a new directory and use git mv to move an existing directory into it. I then used cg diff to generate a patch for the move.

When I use cg patch to apply this patch to the cloned tree it fails. This seems to be a problem in the git code, not cg. It is not picking up the creation of the new intervening subdirectory correctly.

I just synced and this does not work in the current code.