Fixes an error related to using continue within a loop.

https://wiki.php.net/rfc/continue_on_switch_deprecation

models/Form.php

@@ -61,7 +61,7 @@ class Form
 					{
 						$this->missing[] = $field_id;
 						$this->data[$field_id] = '';
-						continue;
+						continue 2;
 					}
 					else
 						$this->data[$field_id] = $post[$field_id];
@@ -78,7 +78,7 @@ class Form
 					{
 						$this->missing[] = $field_id;
 						$this->data[$field_id] = '';
-						continue;
+						continue 2;
 					}
 					else
 						$this->data[$field_id] = $post[$field_id];