Zend\Form\Element\Submit and i18n

[weierophinney]

The "value" attribute of a \Zend\Form\Element\Submit gets translated twice.

Take for example the code below:

$submit = new \Zend\Form\Element\Submit('Submit', array());
$submit->setAttribute('value', 'Sign in');

At this point, if i render the element, the "Sign in" value will get translated, all good. However, after the POST has been sent, in my controller i prepare to perform the validation:

$data = $this->params()->fromPost();
$form->setData($data);

After calling setData(), the already translated "Sign in" will try to get translated again.

This is generally not an issue, however in my implementation if a \Zend\I18n\Translator\Translator::EVENT_MISSING_TRANSLATION is triggered, the unknown string will be added to the PO language file, which kinda messes it up, because you now have strings from different languages into the same language file.

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Originally posted by @adrianilie9 at zendframework/zend-form#113