$ git clone -n https://src.fedoraproject.org/rpms/blt.git /var/lib/mock/f40-build-1166900-21657/root/chroot_tmpdir/scmroot/blt
Cloning into '/var/lib/mock/f40-build-1166900-21657/root/chroot_tmpdir/scmroot/blt'...
$ git fetch origin a5752bcf5ed2b51ddb310a6cb54a27144b9a2af5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/blt
 * [new ref]         a5752bcf5ed2b51ddb310a6cb54a27144b9a2af5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a5752bc Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild