+++ This bug was initially created as a clone of Bug #1227866 +++ If rule B extends rule A and rule A is changed by an incremental compilation the changes in A don't also affect B as expected. For more background about the issue and the upstream fix please refer to the original bugzilla [1] . [1] https://bugzilla.redhat.com/show_bug.cgi?id=1227866
Cherry-picked to 6.2.x branch with https://github.com/droolsjbpm/drools/commit/10ae3a7cb
Second fix cherry-picked to 6.2.x branch with https://github.com/droolsjbpm/drools/commit/e59be95ea
Verified in BRMS 6.1.2.CR2.