$ git clone -n https://src.fedoraproject.org/rpms/zfstream.git /var/lib/mock/f40-build-795608-140206/root/chroot_tmpdir/scmroot/zfstream
Cloning into '/var/lib/mock/f40-build-795608-140206/root/chroot_tmpdir/scmroot/zfstream'...
$ git fetch origin 7febc6c642d69e77e9c54300e90f1cda7868369c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/zfstream
 * [new ref]         7febc6c642d69e77e9c54300e90f1cda7868369c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7febc6c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild