$ git clone -n https://src.fedoraproject.org/rpms/fcitx5-chewing.git /var/lib/mock/f40-build-2285407-55676/root/chroot_tmpdir/scmroot/fcitx5-chewing
Cloning into '/var/lib/mock/f40-build-2285407-55676/root/chroot_tmpdir/scmroot/fcitx5-chewing'...
$ git fetch origin 233a7f289e2dc1a80aabcf788ca0a92595f26fd7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcitx5-chewing
 * [new ref]         233a7f289e2dc1a80aabcf788ca0a92595f26fd7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 233a7f2 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild