problems with the hg-git plugin and bookmarks

[Uwe Brauer]

>>> "Uwe" == Uwe Brauer <oub at mat.ucm.es> writes:

   > o  changeset:   6844:63859b8097d3
   > |  tag:         default/master
   > |  tag:         tip
   > |  parent:      6841:299c7ffa7c22
   > |  user:        Mosè Giordano <mose at gnu.org>
   > |  date:        Sun Sep 04 18:22:29 2016 +0200
   > |  summary:     Do not use a function from cl
   > |
   > | @  changeset:   6843:24c9ce964599
   > |/   bookmark:    master
   > |    parent:      6841:299c7ffa7c22
   > |    user:        Uwe Brauer <oub at mat.ucm.es>
   > |    date:        Sun Sep 04 10:33:45 2016 +0000
   > |    summary:     Merge exam into master

I stripped both changesets and pulled again now I obtain

pulling from git://git.savannah.gnu.org/auctex.git
no changes found
abort: unknown revision '63859b8097d34576e918d544c1cac0ba869efe69'!

So I think I can forget that repo?! And must clone it again?