Have we tried fixing this?

Ideally RefDatabase would consider refs "racily clean" if they were modified too close to the last scan and be scanned again, similar to what we have done with the "racily clean" files in the DirCache.

Is the problem that my change I1556b7e7ea21c31ff76bca930269e0cc7d55cd26 ("RefDirectory: Use FileSnapshot for loose refs") is still outstanding?