Thank you. I did some testing myself (even though less elegant). I can fill the gap of context but unfortunately the information doesn't help. This is actually just code I've found. Git points me to a 7 years old commit when the repo was moved from svn to git. The real author is only guessable but anyhow all these people already went coding somewhere else. For who is left with it, there is always, at least, this monastery to act like a lighthouse in the darkness.