$ git clone -n https://src.fedoraproject.org/rpms/srcpd.git /var/lib/mock/f40-build-2342667-59839/root/chroot_tmpdir/scmroot/srcpd
Cloning into '/var/lib/mock/f40-build-2342667-59839/root/chroot_tmpdir/scmroot/srcpd'...
$ git fetch origin 4d5744f0e329ea9a10948f6ba5694d0d95820eb6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/srcpd
 * [new ref]         4d5744f0e329ea9a10948f6ba5694d0d95820eb6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4d5744f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild