> The very first thing should probably be to carefully check which commit introduced the error, and then carefully study the code changes in that one for clcues

> The very first thing should probably be to carefully check which commit introduced the error, and then carefully study the code changes in that one for clcues. Git bisect is a very useful tool for this assuming you have an easily reproducible case for the problem. (So generally it is decidely less useful when the bug is the result of a race condition)