Correctly mark revision as UNKNOWN for mercurial mqueue patches
Review Request #1712 — Created July 13, 2010 and submitted
Patches that come from mercurial mqueues do not have version information on them, so the revision parameter comes as an empty string, when it should be marked an treated as UNKNOWN. This fixes an issue that ReviewBoard would always fail to accept a patch from an mqueue, saying that the repository didn't contain the file, even when it did.
No regressions, and fixes reported issue.
Looks good. Commited as ead5514. Thanks!