Oops, missed a case.  I now see what Hubert was saying about absolute
paths :p.  In git.strip_git(), the output of git_repo_for_path('.')
was being subtracted from an absolute path.  Obviously, if the path
was returning '.', you'd get things like

filename=
/home/wking/src/fun/testbe/.be/bugs/c3bf839b-88f9-4609-89a2-6a5b75c415b8/values

stripping 2 chars ('.' and '/')], returns
ome/wking/src/fun/testbe/.be/bugs/c3bf839b-88f9-4609-89a2-6a5b75c415b8/values


Now we convert the git_repo_for_path output to an absolute path and get

filename=
/home/wking/src/fun/testbe/.be/bugs/c3bf839b-88f9-4609-89a2-6a5b75c415b8/values
absRepoPath=
/home/wking/src/fun/testbe
absRepoSlashedDir=
/home/wking/src/fun/testbe/
returns
.be/bugs/c3bf839b-88f9-4609-89a2-6a5b75c415b8/values