[[!comment format=mdwn
 username="joey"
 subject="""comment 1"""
 date="2016-12-13T16:42:08Z"
 content="""
The obvious reason for this would be if the file no longer points to that
same key. Perhaps the file got modified and the key is the old version of
the file.

That would explain everything you showed, so currently I don't see any
bug..
"""]]