pull: correctly handle replacing the root of a branch with a non-copied directory Prior to this diff, we would either crash, or continue past the replacement without actually recording the change. This could lead to later failing varify if the state before and after weren't identical.

syntax:glob
build
*.pyc
*.pyo
.DS_Store
*.swp
*~
.coverage
cover
*.py,cover
MANIFEST
dist
*.egg-info
hgsubversion/__version__.py
nbproject
.project
.pydevproject
.settings
*.orig
.noseids
tests/fixtures/temp