Is it correct that even though the parameter is not in the Map, it's value is set by the setProperties method to null?

Example
Query query = session.createQuery("SELECT user FROM User user WHERE user.id IN (:ids) AND user.status IN (:statuses)");

query.setParameterList("statuses",statusList);
map.put("ids", idList);
query.setProperties(map);

Before the fix this worked without problems, but now the Map sets the value of "statuses" to NULL. I don't think this is desired behavior as the Map should be checked by contains() method before setting the value.

Thanks