Deal with January 2017 false positive scenarios
As defined in #10993 (closed), check is there are still some of them and tag them as fragile if any (see #10288).
(Jenkins is already cleaning up the January results, so that month won’t be complete. Whatever.)
Related issues
- Blocks #11816 (closed)
- Blocks #12536 (closed)
Original created by @anonym on 12284 (Redmine)