Make dir auths write to disk digests that don't match
maatuska told me this the other day:
Nov 05 12:55:02.739 [warn] Unable to store signatures posted by 128.31.0.34: Mismatched digest.
And Sebastian had the idea that we should teach directory authorities to save mismatched digests to disk so that we can investigate them.
But before that, there was this log entry:
Nov 05 12:55:02.737 [warn] http status 400 ("Mismatched digest.") response after uploading signatures to dirserver '128.31.0.34:9131'. Please correct.
and
This makes me think that this might not be some local trouble on maatuska but perhaps related to the communication between the authorities. Broken TCP connection perhaps?
Adding this option should be easy enough for it to be worth it even if we'll only find half a digest there or something so I say let's do it.
BTW, #1890 (moved) saw quite a few mismatched digests too.