$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-smallsemi.git /var/lib/mock/f42-build-3340402-44984/root/chroot_tmpdir/scmroot/gap-pkg-smallsemi
Cloning into '/var/lib/mock/f42-build-3340402-44984/root/chroot_tmpdir/scmroot/gap-pkg-smallsemi'...
$ git fetch origin 7d2518a55c896fec7837237f17c363c2ca984d6e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-smallsemi
 * [new ref]         7d2518a55c896fec7837237f17c363c2ca984d6e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7d2518a Version 0.7.2