$ git clone -n https://src.fedoraproject.org/rpms/fcitx-chewing.git /var/lib/mock/f40-build-794005-139322/root/chroot_tmpdir/scmroot/fcitx-chewing
Cloning into '/var/lib/mock/f40-build-794005-139322/root/chroot_tmpdir/scmroot/fcitx-chewing'...
$ git fetch origin 3945718238cbebc5f6c5f39503ccda18134cbbea:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcitx-chewing
 * [new ref]         3945718238cbebc5f6c5f39503ccda18134cbbea -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3945718 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild