R1:b95bf722d55e

Drop the "update revision with commit diff" transaction if the revision is already closed

Summary:
Ref T13290. Prior to recent changes, if we parsed some commit C which was associated with a revision R, but R was already closed, we'd skip the whole set of updates because the "close the revision" transaction would fail and we'd throw because we did not `setContinueOnNoEffect()`.

We now continue on no effect so we can get the edge ("commit has revision" / "revision has commit"), since we want it in all…