$ git clone -n https://src.fedoraproject.org/rpms/tzdata.git /var/lib/mock/f40-build-2331524-59090/root/chroot_tmpdir/scmroot/tzdata
Cloning into '/var/lib/mock/f40-build-2331524-59090/root/chroot_tmpdir/scmroot/tzdata'...
$ git fetch origin cf1e56dd76da452767c57dfa343c50ca953ae542:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tzdata
 * [new ref]         cf1e56dd76da452767c57dfa343c50ca953ae542 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cf1e56d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild