Re-reading XEP-0050 for an implementation issue I've found nothing that forbids sending the actions <next/> and <complete/> together. Imho it is a nonsense and I think nobody uses it, but for better clarification and better user interfaces (I've seen both buttons together sometimes) I'd write in paragraph 3.4, in the third bullet: "<next/> and <complete/> MUST not be used together."
bye -- Fabio Forno, Bluendo srl http://www.bluendo.com jabber id: [email protected]
