zle options (was Re: PATCH: highlight pasted text)

[Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx>]

On Jul 25,  9:49am, Oliver Kiddle wrote:
}
} Yes, I think that is preferable. You might want zle -U - "$KEYS" just in
} case the next key is -, however.

Wow, so incremental-complete-word has had a bug all these years.

What's the point of allowing other options after -U?  Just a side-effect
of using the standard option parsing mechanism?  There's no sensible
combination of other options with -U (or with -K or -M or ...), they
all just generate "too many arguments" or "incompatible" errors.