$ git clone -n https://src.fedoraproject.org/rpms/mod_nss.git /var/lib/mock/f40-build-798883-142038/root/chroot_tmpdir/scmroot/mod_nss
Cloning into '/var/lib/mock/f40-build-798883-142038/root/chroot_tmpdir/scmroot/mod_nss'...
$ git fetch origin 33ec477849eea09eb176a5cf52b4cb9b0f60788a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mod_nss
 * [new ref]         33ec477849eea09eb176a5cf52b4cb9b0f60788a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 33ec477 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild