[rules-users] insertLogical and modifyRetract

Hello, I am a bit confused about how insertLogical() supposed to work in drools 5. when i have a rule such as: rule "fact = 1" when $f : UserFact(fact1 == 1); then insertLogical(new CreatedFact($f.getFact2())); end now i change $f in such a way, that the rule will fire again. via // build first version UserFact f = new UserFact(); f.setFact1(1); f.setFact2(1); memory.insert(f); memory.fireAllRules(); // <- Rule fires once // now i change the memory and fire the rules again memory.modifyRetract(f) ; f.setFact2(100); // <- changing $f, but leaving fact1 as it is. memory.modifyInsert(f); memory.fireAllRules(); // <- Rule fires again now the rule should fire again, which it does. but i end up with two CreatedFact instances in the workingMemory.. one with the old OtherFact value 1, and one with the new value, 100 but i want only the second instance. the one created first is not valid any more. i could write an extra rule for retracting the first CreatedFact-fact, but then i would have a very tight coupling of the two rules. is there a better way? it seems odd to me, that a consequence of a rule stays in memory, when there is a more current version of the rule evocation with the _same_ facts in the precondition and a different consequence. thanks in advance, tim