Summary:
Default values entered in FB tag cause PHP Warning in submission template
Detailed Description:
When you predefine a field value in the FormBuilder tag, eg {FormBuilder
form='my_form' value_fld4='some value'}, the submission template throws a PHP
warning saying that htmlspecialchars requires param1 to be a string, array given
on line 2589.
Quick fix solution - Form.class.php Line 2589:
//$replVal = htmlspecialchars($replVal);
$replVal = is_array($replVal) ? htmlspecialchars($replVal[0]) :
htmlspecialchars($replVal);