Logic for Curvedefinition without nodes seems to fail

[oyvfos]

Hi,

This logic:

 if (requiresMarketData(curveDefn)) {
      RatesCurveInputsId curveInputsId = RatesCurveInputsId.of(groupName, curveDefn.getName(), obsSource);
      return marketData.getValue(curveInputsId);
    } else {
      return MarketDataBox.ofSingleValue(RatesCurveInputs.builder().build());
    }

in RatesCurveGroupMarketDataFunction fails for a curvedef without marketdata/nodes. Argument 'curveMetadata' must not be null.

Thanks, Oyvind