$ git clone -n https://src.fedoraproject.org/rpms/mmsd-tng.git /var/lib/mock/f40-build-2173156-51060/root/chroot_tmpdir/scmroot/mmsd-tng
Cloning into '/var/lib/mock/f40-build-2173156-51060/root/chroot_tmpdir/scmroot/mmsd-tng'...
$ git fetch origin 117574e8fb1dbaf3ccebc5831f2cb3d0fc38ded3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mmsd-tng
 * [new ref]         117574e8fb1dbaf3ccebc5831f2cb3d0fc38ded3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 117574e Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild