$ git clone -n https://src.fedoraproject.org/rpms/dmenu.git /var/lib/mock/f45-build-7578-367/root/chroot_tmpdir/scmroot/dmenu
Cloning into '/var/lib/mock/f45-build-7578-367/root/chroot_tmpdir/scmroot/dmenu'...
$ git fetch origin f6b0a70e955372f3d3974aff0e7e8ec6ab7cc560:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dmenu
 * [new ref]         f6b0a70e955372f3d3974aff0e7e8ec6ab7cc560 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f6b0a70 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild