Johannes Schindelin [off-list ref] writes:
The optional new config option `receive.fsck.skiplist` specifies the path
to a file listing the names, i.e. SHA-1s, one per line, of objects that
are to be ignored by `git receive-pack` when `receive.fsckObjects = true`.
Makes sense, but I wonder if it makes sense to have a similar "ok to
be broken" list for "git fsck" (or perhaps they could even use the
same list) for exactly the same reason why this option makes sense.