$ git clone -n https://src.fedoraproject.org/rpms/python-flake8-polyfill.git /var/lib/mock/f45-build-30696-647/root/chroot_tmpdir/scmroot/python-flake8-polyfill
Cloning into '/var/lib/mock/f45-build-30696-647/root/chroot_tmpdir/scmroot/python-flake8-polyfill'...
$ git fetch origin 79c28bc995418c5461b4a7e13221f7225b9e61d8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-flake8-polyfill
 * [new ref]         79c28bc995418c5461b4a7e13221f7225b9e61d8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 79c28bc Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild