[rules-users] category rules in Guvnor packages

Hi all, I can't make my rules inherit from category rules. I saw a JIRA reporting a malfunction for this, but it shoud be corrected. I am using version 5.0.1 I tried a category rule writen un DRL, or in BRL. Same for rules that should inherit the LHS (tested with pure DRL, BRL ...) from one of their categories. And yes I tried to inspect the big DRL generated from package, and also tried with compiled binary. Does anyone have some kind of doc or sample using this function ? Is there some restrictions on rules than can use this, either for category rules and/or rules that should inherit some LHS ? Thanks !