[html-formfu] Bug in get_element: fails to work when auto_fieldset is on

[Matija Grabnar]

Given a form definition like this:
indicator: submit
auto_fieldset: 1
default_model: DBIC
model: DBIC
auto_label: %n

elements:
   - type: Text
     name: name

   - type: Checkbox
     name: check1
     default_empty_value: 1
     label: Check here for 1

   - type: Checkbox
     name: check2
     default_empty_value: 1
     label: Check here for 2

   - type: Checkbox
     name: check3
     default_empty_value: 1
     label: Check here for 4

   - type: Select
     name: c
     empty_first: 1

constraints:
  - SingleValue

A statement like   my $s = $form->get_element({type=>'Select'}); will 
return nothing.
However, if I remove the auto_fieldset above, the return will be correct.

My research indicates that the bug is in the _get_elements routine, 
around line 50.
If auto_fieldset is on, then $elements is an array with ONE element (the 
fieldset), which
contains a hash, which contains the array of more elements (the input 
field, the checkboxes,
and the select). The grep only operates on the outermost array, 
therefore it fails
to produce the correct result.

When auto_fieldset is not on, the $elements contains the fields 
directly, without the fieldset, and
the result is correct.

I think some kind of a recursive descent into the fieldsets will have to 
be implemented...