[rules-dev] Smooth operator

Given a scant selection of facts taken from java.lang.Integer and java.lang.Long (no value exceeds and a rule base with just 4 rules using simple constraints using nothing but the fact values, a single operator besides "==", it compiles and executes according to my expectations. Getting high-spirited, I added dialect "mvel"; to my DRL file and re-run everything. Lo and behold! Some rules don't fire any more! Is this to be expected? (There is no difference between 5.1.1 and 5.2.x.) Cheers Wolfgang