$ git clone -n https://src.fedoraproject.org/rpms/janet.git /var/lib/mock/f40-build-2315133-57892/root/chroot_tmpdir/scmroot/janet
Cloning into '/var/lib/mock/f40-build-2315133-57892/root/chroot_tmpdir/scmroot/janet'...
$ git fetch origin 9e5411ea655c93ac07ecf82229b1812c5e9c6384:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/janet
 * [new ref]         9e5411ea655c93ac07ecf82229b1812c5e9c6384 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9e5411e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild