On Wed, Jan 16, 2013 at 2:43 PM, Oliver Kiddle <okiddle@yahoo.co.uk> wrote:

> _arguments has no way of knowing that subcommands can't begin with "--"
> so while it adds the completion matches for the options, it also
> considers the *:... rule to be applicable.
>

Ah, now I see. I had the wrong mental picture of what was going on. Thank
you for your help.