$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-smallsemi.git /var/lib/mock/f40-build-2663533-67007/root/chroot_tmpdir/scmroot/gap-pkg-smallsemi
Cloning into '/var/lib/mock/f40-build-2663533-67007/root/chroot_tmpdir/scmroot/gap-pkg-smallsemi'...
$ git fetch origin e1b38af22e688ff05bde09b4f02d538832195090:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-smallsemi
 * [new ref]         e1b38af22e688ff05bde09b4f02d538832195090 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e1b38af Rebuild for gap 4.13.0