$ git clone -n https://src.fedoraproject.org/rpms/gnome-monitor-config.git /var/lib/mock/f45-build-11459-432/root/chroot_tmpdir/scmroot/gnome-monitor-config
Cloning into '/var/lib/mock/f45-build-11459-432/root/chroot_tmpdir/scmroot/gnome-monitor-config'...
$ git fetch origin 6a05e03e3bf13fa07ab78da57e97e73f18a05659:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-monitor-config
 * [new ref]         6a05e03e3bf13fa07ab78da57e97e73f18a05659 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6a05e03 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild