$ git clone -n https://src.fedoraproject.org/rpms/qrtr.git /var/lib/mock/f45-build-34017-676/root/chroot_tmpdir/scmroot/qrtr
Cloning into '/var/lib/mock/f45-build-34017-676/root/chroot_tmpdir/scmroot/qrtr'...
$ git fetch origin 576eacc69fa33e9e0d7dae48db68e03ad78b0901:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qrtr
 * [new ref]         576eacc69fa33e9e0d7dae48db68e03ad78b0901 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 576eacc Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild