setFieldAttribute with multiple fieldsets?

[Mike Pearl]

I've written a plugin to get some of the registration data from facebook.  In addition, I'm using the user_profile plugin, giving me a few extra fields during registration.  The plugin is getting data from Facebook, then setting the default values on the form fields.

public function onContentPrepareForm($form, $data)
{
 if(isset($data->socialData)) // $data->socialData populated during onContentPrepareData

 {
 $form->setFieldAttribute('name', 'default', $data->socialData->displayName);
 $form->setFieldAttribute('email1', 'default', $data->socialData->emailVerified);
 $form->setFieldAttribute('postal_code', 'default', $data->socialData->zip, 'profile');
 $form->setFieldAttribute('phone', 'default', $data->socialData->phone, 'profile');
 }

 return true;
}

The registration form works for the _default fields (name & email1), but is not setting the 'default' values on the postal_code or phone fields, added with the user_profile plugin.  What am I doing wrong?

[Mike Pearl]

FYI, I'm using Joomla 3.6.

[Mike Pearl]

I still haven't solved this, but was able to come up with a workaround.  I put the following code In a template override (/templates/mytemplate/html/com_users/registration/default.php).  

if(isset($this->data->socialData))
{
  $this->form->setValue('name', null, $this->data->socialData->displayName);
  $this->form->setValue('email1', null, $this->data->socialData->email);
  $this->form->setValue('postal_code', 'profile', $this->data->socialData->zip);
  $this->form->setValue('phone', 'profile', $this->data->socialData->phone);
}

This works, but seems really kluge.  Still want to set the value in the plugin if anyone has any thoughts.

Thanks again!