$ git clone -n https://src.fedoraproject.org/rpms/python-supersmoother.git /var/lib/mock/f45-build-33232-667/root/chroot_tmpdir/scmroot/python-supersmoother
Cloning into '/var/lib/mock/f45-build-33232-667/root/chroot_tmpdir/scmroot/python-supersmoother'...
$ git fetch origin cae2efaa479acd956c7b2ff914872b628f6ac615:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-supersmoother
 * [new ref]         cae2efaa479acd956c7b2ff914872b628f6ac615 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cae2efa Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild