}
if ( isAllowed ) {
ModifyPreviousTuples modifyPreviousTuples = new ModifyPreviousTuples(cloneFactHandle.getFirstLeftTuple(), cloneFactHandle.getFirstRightTuple(), epNode );
cloneFactHandle.clearLeftTuples();
cloneFactHandle.clearRightTuples();
this.sink.propagateModifyObject(cloneFactHandle,
modifyPreviousTuples,
context,
workingMemory);