$ git clone -n https://src.fedoraproject.org/rpms/gpsim.git /var/lib/mock/f45-build-12960-444/root/chroot_tmpdir/scmroot/gpsim
Cloning into '/var/lib/mock/f45-build-12960-444/root/chroot_tmpdir/scmroot/gpsim'...
$ git fetch origin daca7af054a9924753d5f17a39028b6dcf255f16:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gpsim
 * [new ref]         daca7af054a9924753d5f17a39028b6dcf255f16 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at daca7af Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild