[rules-users] getFactHandle() problem

[Guardian]

Hi all, 
i want to use the getFactHandle(obj) method to retrieve a previously
inserted fact by providing an equivalent object as an argument. The
equivalent object is a new object, i.e. it has not the same memory address.
Therefore i have overwritten the equals() and hashcode() methods. I also
tried to set the assertion-mode for the rulebase to equality-mode. The
problem is if i try to get the factHandle for an object that is loaded from
the database the getFactHandle() methode returns null. The method does not
find the factHandle for this object. 
What´s the problem? 
Has this something to deal with the problem in JIRA-1308
(http://jira.jboss.com/jira/browse/JBRULES-1308)?

Thanks,
Dennis Jansen