$ git clone -n https://src.fedoraproject.org/rpms/fcitx5-kkc.git /var/lib/mock/f40-build-792303-138328/root/chroot_tmpdir/scmroot/fcitx5-kkc
Cloning into '/var/lib/mock/f40-build-792303-138328/root/chroot_tmpdir/scmroot/fcitx5-kkc'...
$ git fetch origin a1926f1520a3fdd6d540e43c51bbdf0b0b74252c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcitx5-kkc
 * [new ref]         a1926f1520a3fdd6d540e43c51bbdf0b0b74252c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a1926f1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild