$ git clone -n https://src.fedoraproject.org/rpms/fcitx-m17n.git /var/lib/mock/f40-build-792226-138206/root/chroot_tmpdir/scmroot/fcitx-m17n
Cloning into '/var/lib/mock/f40-build-792226-138206/root/chroot_tmpdir/scmroot/fcitx-m17n'...
$ git fetch origin 76e79cfe67bbe5a7823bf6745680a175f9030bba:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcitx-m17n
 * [new ref]         76e79cfe67bbe5a7823bf6745680a175f9030bba -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 76e79cf Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild