$ git clone -n https://src.koozali.org/smeserver/fastforward /var/lib/mock/dist-sme11-os-build-477-15192/root/chroot_tmpdir/scmroot/fastforward
Cloning into '/var/lib/mock/dist-sme11-os-build-477-15192/root/chroot_tmpdir/scmroot/fastforward'...
$ git fetch origin 0.51-5:KOJI_FETCH_HEAD
error: cannot update ref 'refs/heads/KOJI_FETCH_HEAD': trying to write non-commit object 823444d96f6b509f8ec38aa2f186bf150cef6e7c to branch 'refs/heads/KOJI_FETCH_HEAD'
From https://src.koozali.org/smeserver/fastforward
 ! [new tag]         0.51-5     -> KOJI_FETCH_HEAD  (unable to update local ref)
$ git reset --hard 0.51-5
HEAD is now at 41e66f5 debugsources
$ git clone https://src.koozali.org/smeserver/common common
Cloning into 'common'...