T5: Link form elements to enclosing form after zone update?

[Dmitriy Vsekhvalnov]

Hi all,

  How can i return form elements as part of zone update?

E.g:

<t:form>
  <t:zone t:id="zone_1" />
  <t:zone t:id="zone_2" />
  ....
</t:form>

So i'm returning zone_1, which contains some form fields (text fields), and
i'm getting client-side exception: 'Client exception processing response:
TypeError: Cannot read property '_tapestry' of null'

How to link them to enclosing form correctly?