$ git clone -n https://src.fedoraproject.org/rpms/python-colorzero.git /var/lib/mock/f45-build-30085-642/root/chroot_tmpdir/scmroot/python-colorzero
Cloning into '/var/lib/mock/f45-build-30085-642/root/chroot_tmpdir/scmroot/python-colorzero'...
$ git fetch origin e2f8ef58c7cc1002d6d459648b0894258f8d899a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-colorzero
 * [new ref]         e2f8ef58c7cc1002d6d459648b0894258f8d899a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e2f8ef5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild