Fields without operator write to global dictionary

I can be argued whether this is a bug or feature request, since the FAST specification is not 100% clear on this issue***. However, because the other Opensource implementation Quickfast is handing this as suggested, I decided to file this as a bug.

The Eurex T7 EMDI feed defines e.g the field TransactTime with different/without operators:

template TransactTime-Operator

ProductStateChange none
MassInstrumentStateChange delta
InstrumentStateChange delta
ComplexInstrumentUpdate none
QuoteRequest copy
CrossRequest none
InstrumentSnapshot delta
InstrumentIncremental delta
MarketDataReport delta

Now, in case you have a message order where (a) the field without operator precedes (b) a field with operator before the next reset, the decoded value for the operator field is wrong (contains now value a+b, whereas only b would be correct)

Suggested change: fields without operator should not write into a dictionary, or in other words: only operators should update the dictionary.

• • • • FAST 1.1 Specification, chapter 6.3.1: "Some operators rely on a previous value. Previous values are maintained in named dictionaries." --> this can be interpreted in a way that only operators maintain a dictionary.