$ git clone -n https://src.fedoraproject.org/rpms/python-crayons.git /var/lib/mock/f45-build-30143-643/root/chroot_tmpdir/scmroot/python-crayons
Cloning into '/var/lib/mock/f45-build-30143-643/root/chroot_tmpdir/scmroot/python-crayons'...
$ git fetch origin 63c26c2f70ce9d2509a068bd39c05af9062c0404:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-crayons
 * [new ref]         63c26c2f70ce9d2509a068bd39c05af9062c0404 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 63c26c2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild