$ git clone -n https://src.fedoraproject.org/rpms/mingw-polyclipping.git /var/lib/mock/f45-build-18650-525/root/chroot_tmpdir/scmroot/mingw-polyclipping
Cloning into '/var/lib/mock/f45-build-18650-525/root/chroot_tmpdir/scmroot/mingw-polyclipping'...
$ git fetch origin 94ee64b851115710e87c5b6443276e4c60a0269d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-polyclipping
 * [new ref]         94ee64b851115710e87c5b6443276e4c60a0269d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 94ee64b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild