case PropagationContext.INSERTION:
case PropagationContext.RULE_ADDITION:
tuples.addInsert(tupleEntry.getLeftTuple());
break;
case PropagationContext.MODIFICATION:
tuples.addUpdate(tupleEntry.getLeftTuple());
break;
case PropagationContext.DELETION:
case PropagationContext.EXPIRATION:
case PropagationContext.RULE_REMOVAL:
isNonNormalizedDelete = tupleEntry.getLeftTuple().getStagedType() == LeftTuple.NONE;