Installing from a git checkout is a bad practice for production, but it's a common thing during development. One problem I often face is that I have a software release installed from a given revision and I want to make a small change to the software, but not recompile everything. To achieve this, I need to use the exact same git revision that was installed before, but most of the time, I don't remember what revision I have been using last time I installed.

This change is about adding a buildout comment in the generated buildout.cfg made to install the profile, with the revision that was used for installing, so that we can re-install the same software again.