$ git clone -n https://src.fedoraproject.org/rpms/fcitx5-unikey.git /var/lib/mock/f40-build-2285445-55678/root/chroot_tmpdir/scmroot/fcitx5-unikey
Cloning into '/var/lib/mock/f40-build-2285445-55678/root/chroot_tmpdir/scmroot/fcitx5-unikey'...
$ git fetch origin 8651847f069b3807f0170498743ad92d6adf00b5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcitx5-unikey
 * [new ref]         8651847f069b3807f0170498743ad92d6adf00b5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8651847 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild