Propel2: `deleted` column conflicts with propels own `deleted` attribute

Let’s say we have a table user with the following column: <column name="deleted" type="CHAR" sqlType="enum(....)"/>

The generated object model will now look like this:

    /**
     * The value for the deleted field.
     * @var        string
     */
    protected $deleted;

But propel already generated a property with the same name for internal use:

    /**
     * attribute to determine whether this object has been deleted.
     * @var boolean
     */
    protected $deleted = false;

Which results in Fatal error: Cannot redeclare User::$deleted in /Base/User.php on line xxx

---

Propel should warn us about this conflict; or even better should not name internal properties with general names (maybe add a prefix?).