Improved the plugin form builder, to allow multi form field relationships.

admin/models/field.php

@@ -483,6 +483,8 @@ class ComponentbuilderModelField extends JModelAdmin
 		if (empty($data))
 		{
 			$data = $this->getItem();
+			// run the perprocess of the data
+			$this->preprocessData('com_componentbuilder.field', $data);
 		}
 
 		return $data;