$ git clone -n https://src.fedoraproject.org/rpms/ghc-text-short.git /var/lib/mock/f38-build-side-42-init-devel-820257-28340/root/chroot_tmpdir/scmroot/ghc-text-short
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-820257-28340/root/chroot_tmpdir/scmroot/ghc-text-short'...
$ git fetch origin 743ab27d7d8e6318c41e1f269e551237cd62a258:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-text-short
 * [new ref]         743ab27d7d8e6318c41e1f269e551237cd62a258 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 743ab27 Convert to %autorelease and %autochangelog