$ git clone -n https://src.fedoraproject.org/rpms/xplanet.git /var/lib/mock/f40-build-753244-117186/root/chroot_tmpdir/scmroot/xplanet
Cloning into '/var/lib/mock/f40-build-753244-117186/root/chroot_tmpdir/scmroot/xplanet'...
$ git fetch origin 6c82be52033cc600933c4fad54cd47a873013cb8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xplanet
 * [new ref]         6c82be52033cc600933c4fad54cd47a873013cb8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6c82be5 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild