[DROOLS-239] Initial fact hack
[DROOLS-239] InitialFact leaks into other patterns via inheritance
[DROOLS-239] InitialFact leaks into other patterns via inheritance - 5.x additions not in 6.x
[DROOLS-239] InitialFact leaks into other patterns via inheritance - 5.x additions not in 6.x
[DROOLS-239] InitialFact leaks into other patterns via inheritance