$ git clone -n https://src.fedoraproject.org/rpms/python-testresources.git /var/lib/mock/f45-build-33299-668/root/chroot_tmpdir/scmroot/python-testresources
Cloning into '/var/lib/mock/f45-build-33299-668/root/chroot_tmpdir/scmroot/python-testresources'...
$ git fetch origin 65552686b3aa607f7683e736cea59ff4cf764e38:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-testresources
 * [new ref]         65552686b3aa607f7683e736cea59ff4cf764e38 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6555268 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild