$ git clone -n https://src.fedoraproject.org/rpms/qsf.git /var/lib/mock/f45-build-33988-676/root/chroot_tmpdir/scmroot/qsf
Cloning into '/var/lib/mock/f45-build-33988-676/root/chroot_tmpdir/scmroot/qsf'...
$ git fetch origin c24bb144e9baaf5ed3dbe8b01432b048f75c49c3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qsf
 * [new ref]         c24bb144e9baaf5ed3dbe8b01432b048f75c49c3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c24bb14 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild