DOC Fix phpdoc for FormScaffolder->includeRelations.

This was intentionally changed to not include has_one in 524d7a9

src/Forms/FormScaffolder.php

@@ -58,7 +58,7 @@ class FormScaffolder
     public $fieldClasses;
 
     /**
-     * @var boolean $includeRelations Include has_one, has_many and many_many relations
+     * @var boolean $includeRelations Include has_many and many_many relations
      */
     public $includeRelations = false;