$ git clone -n https://src.fedoraproject.org/rpms/deepin-dock.git /var/lib/mock/f41-build-side-1-2646039-27211/root/chroot_tmpdir/scmroot/deepin-dock
Cloning into '/var/lib/mock/f41-build-side-1-2646039-27211/root/chroot_tmpdir/scmroot/deepin-dock'...
$ git fetch origin 738011ccf99afcdad24a24e6138d52f5640fed6d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/deepin-dock
 * [new ref]         738011ccf99afcdad24a24e6138d52f5640fed6d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 738011c 6.0.37