Type attribute on data forms is mandatory
Type attribute on data forms is mandatory

As defined in [XEP-0004 Data forms](http://xmpp.org/extensions/xep-0004.html),
type attribute on x tag is mandatory.
The example from [XEP-0313](http://xmpp.org/extensions/xep-0313.html#example-6)
was fixed in january 2015.

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