I had the problem, that hooks that reside in my global hook directory ~/git-hooks
are not executed.
Namely the git-flow dependent hook post-flow-release-start
just wasn't called, while the hook pre-commit
was called without any problems.
git-flow-avh is unable to deal with the ~
character in the path to the hooks. Changing it to an absolute path /Users/atripes/git-hooks
worked.