$ git clone -n https://src.fedoraproject.org/rpms/stp.git /var/lib/mock/f42-build-side-1-3537746-46560/root/chroot_tmpdir/scmroot/stp
Cloning into '/var/lib/mock/f42-build-side-1-3537746-46560/root/chroot_tmpdir/scmroot/stp'...
$ git fetch origin 385b12fea7e7c91afd610b8489086acdfbcca894:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/stp
 * [new ref]         385b12fea7e7c91afd610b8489086acdfbcca894 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 385b12f Rebuilt for cryptominisat-5.13 (rhbz#2365502)