Hi all,

I think I have a fix for the log rotation bug (https://gitlab.com/mailman/mailman/-/issues/931). I'd appreciate review of the theory of the fix, which is discussed in detail in the issue. I've done some live testing on a staging system, and loggers appear to be reopening their logs as expected after about 15 hourly rotations.

I haven't had time to generate a test. The environment where I'm doing the work is really closed, but I'll do the sneakernetting and a preliminary MR later for convenience in review.

Steve