ZF2-329: Cant set validator to ignore empty variables   When I
POST an empty form field the validator return error and break
the process.  This is one of the variation I tried:      'name'
=> 'based_on_activity_id',     'required'   => false,
'allow_empty'=> true,     'validators' => array(
'name' => 'Digits',             'options' => array(
'allowEmpty' => true,             'required'   => false,
'messages' => array(                     'notDigits' =>
"based_on_activity_id accept only integers",   What is the
error?  The default "Value is required and can't be empty"  Can
you dump the array that is being passed to the input filter,
please, so we can verify the value is not present?