[FIX] Pinning of git merges
[FIX] Pinning of git merges

This change allows the buildout recipe to support merges like
    git https://github.com/MyTeam/odoo parts/odoo 01234567890abcdef branch=my_branch

By checking the git reference against the correct repo, the remote revision
will be imported correctly in the local repo. It can then be merged (not
pulled) into the local branch.

anybox/anybox.recipe.odoo