$ git clone -n https://src.fedoraproject.org/rpms/vapoursynth.git /var/lib/mock/f39-build-1842002-41999/root/chroot_tmpdir/scmroot/vapoursynth
Cloning into '/var/lib/mock/f39-build-1842002-41999/root/chroot_tmpdir/scmroot/vapoursynth'...
$ git fetch origin d59332c771dca3af0f0f750dabc83f1030cb0f6c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vapoursynth
 * [new ref]         d59332c771dca3af0f0f750dabc83f1030cb0f6c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d59332c Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild