$ git clone -n https://src.fedoraproject.org/rpms/python-jaraco-path.git /var/lib/mock/f40-build-2635008-66047/root/chroot_tmpdir/scmroot/python-jaraco-path
Cloning into '/var/lib/mock/f40-build-2635008-66047/root/chroot_tmpdir/scmroot/python-jaraco-path'...
$ git fetch origin 71b9c8d328ba45d7307d910d3d10df4429029f5e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-jaraco-path
 * [new ref]         71b9c8d328ba45d7307d910d3d10df4429029f5e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 71b9c8d Convert to %autorelease and %autochangelog