> Note only isn't that a bzr dir, but I don't even _use_ bzr (though I
> have a .bar config file from a long time ago, which only has my email
> address in it).
I guess the above ".bar" was meant to be ".bzr" and is really ~/.bzr, right?
If so, that explains it: VC walks up the directory tree until it finds
a ".bzr" subdirectory and considers it to be the root of a BZR tree.
We need to make this determination more selective. I don't know BZR nearly
well enough to know what should be done. Would checking for
.bzr/branch-format be a good check (i.e. would it always succeed in a real
BZR workspace and would it normally fail in the ~/.bzr config dir)?