It’s entirely solveable with 23 characters:
$ cat <<EOF | od -a
> [General]
> InputMethod=
> EOF
0000000 [ G e n e r a l ] nl I n p u t M
0000020 e t h o d = nl
0000027
However, I don’t think it’s going to get a permanent fix from us. As I’ve said, for the sake of tablets (which I see as viable targets for Lubuntu), recent Ubuntu-wide changes to SDDM made this the new default, so I think it’s here to stay.