[[!comment format=mdwn
 username="yarikoptic"
 avatar="http://cdn.libravatar.org/avatar/f11e9c84cb18d26a1748c33b48c924b4"
 subject="comment 1"
 date="2019-07-11T20:15:45Z"
 content="""
further debugging showed that the bug appears if `annex upgrade` is done in detached HEAD mode.
"""]]
