$ git clone -n https://src.fedoraproject.org/rpms/fcitx5-m17n.git /var/lib/mock/f40-build-2686994-68081/root/chroot_tmpdir/scmroot/fcitx5-m17n
Cloning into '/var/lib/mock/f40-build-2686994-68081/root/chroot_tmpdir/scmroot/fcitx5-m17n'...
$ git fetch origin 21ed5b3769e6b0389e286207c8b613c25864138f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcitx5-m17n
 * [new ref]         21ed5b3769e6b0389e286207c8b613c25864138f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 21ed5b3 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild