Can't use replay in a subdirectory of a branch

[Matt Giuca]

If I use any branch-oriented Bzr command in a subdirectory of a branch, it behaves as if I was in the top level. For example:

branch/subdir$ bzr merge $OTHERBRANCH

correctly merges $OTHERBRANCH with my branch.

However, bzr replay doesn't work at all in a subdirectory:

branch$ bzr replay $OTHERBRANCH
(works)

branch/subdir$ bzr replay $OTHERBRANCH
bzr: ERROR: Not a branch: "/path/to/branch/subdir/".

I expect this to work the same as if my current directory was the top level of the branch.