Missing offer type in generic constraint

[akxen]

Case ID: 20210405178

APD01 has L5MI variable in generic constraint, but not L5MI bid. This results in a KeyError being raised when constructing constraints linking generic constraint trader variables to total offer variables for each trade type.

Price bands:

<Trader TraderID="APD01" TraderType="NORMALLY_ON_LOAD" SemiDispatch="0">
<TraderInitialConditionCollection>
	<TraderInitialCondition InitialConditionID="AGCStatus" Value="0" />
	<TraderInitialCondition InitialConditionID="InitialMW" Value="0" />
	<TraderInitialCondition InitialConditionID="WhatIfInitialMW" Value="0" />
</TraderInitialConditionCollection>
<TradePriceStructureCollection>
	<TradePriceStructure TradePriceStructureID="20210405178">
		<TradeTypePriceStructureCollection>
			<TradeTypePriceStructure TradeType="R5MI" PriceBand1="0.26" PriceBand2="0.75" PriceBand3="1.49" PriceBand4="2.29" PriceBand5="2.77" PriceBand6="13.75" PriceBand7="18.89" PriceBand8="22.99" PriceBand9="2399" PriceBand10="12500" Offer_SettlementDate="2021-04-05T00:00:00+10:00" Offer_EffectiveDate="2021-04-05T18:40:44+10:00" Offer_VersionNo="1" />
			<TradeTypePriceStructure TradeType="R60S" PriceBand1="0.26" PriceBand2="0.75" PriceBand3="1.49" PriceBand4="2.29" PriceBand5="2.77" PriceBand6="13.75" PriceBand7="18.89" PriceBand8="22.99" PriceBand9="2399" PriceBand10="12500" Offer_SettlementDate="2021-04-05T00:00:00+10:00" Offer_EffectiveDate="2021-04-05T18:40:30+10:00" Offer_VersionNo="1" />
			<TradeTypePriceStructure TradeType="R6SE" PriceBand1="0.25" PriceBand2="0.5" PriceBand3="1.49" PriceBand4="2.29" PriceBand5="2.77" PriceBand6="13.75" PriceBand7="18.89" PriceBand8="50" PriceBand9="2399" PriceBand10="12500" Offer_SettlementDate="2021-04-05T00:00:00+10:00" Offer_EffectiveDate="2021-04-05T18:40:18+10:00" Offer_VersionNo="1" />
		</TradeTypePriceStructureCollection>
	</TradePriceStructure>
</TradePriceStructureCollection>
</Trader>

Quantity bands:

<TraderPeriod TraderID="APD01" RegionID="VIC1" TradePriceStructureID="20210405178">
<TradeCollection>
	<Trade TradeType="R5MI" MaxAvail="450" EnablementMin="0" EnablementMax="0" LowBreakpoint="0" HighBreakpoint="0" BandAvail1="30" BandAvail2="15" BandAvail3="20" BandAvail4="20" BandAvail5="20" BandAvail6="20" BandAvail7="10" BandAvail8="0" BandAvail9="0" BandAvail10="315" />
	<Trade TradeType="R60S" MaxAvail="450" EnablementMin="0" EnablementMax="0" LowBreakpoint="0" HighBreakpoint="0" BandAvail1="30" BandAvail2="10" BandAvail3="10" BandAvail4="20" BandAvail5="20" BandAvail6="20" BandAvail7="15" BandAvail8="10" BandAvail9="0" BandAvail10="315" />
	<Trade TradeType="R6SE" MaxAvail="450" EnablementMin="0" EnablementMax="0" LowBreakpoint="0" HighBreakpoint="0" BandAvail1="31" BandAvail2="0" BandAvail3="0" BandAvail4="0" BandAvail5="0" BandAvail6="0" BandAvail7="0" BandAvail8="0" BandAvail9="0" BandAvail10="419" />
</TradeCollection>
</TraderPeriod>

Generic constraint:

<GenericConstraint ConstraintID="F_V+NIL_APD01_L5" Version="20130823000000_1" EffectiveDate="2013-08-23T00:00:00+10:00" VersionNo="1" Type="LE" ViolationPrice="17400000" RHS="0" Force_SCADA="False">
<LHSFactorCollection>
	<TraderFactor Factor="1" TradeType="L5MI" TraderID="APD01" />
</LHSFactorCollection>
<RHSTermCollection>
	<RHSTerm TermID="1" Multiplier="1" SpdID="APD01_LOAD" SpdType="A" Default="0" />
	<RHSTerm TermID="2" Multiplier="1" SpdID="APD02_LOAD" SpdType="A" Default="0" />
	<RHSTerm TermID="3" Multiplier="-15" SpdID="Constant" SpdType="C" Default="0" />
	<RHSTerm TermID="4" Multiplier="10000" Operation="STEP" SpdID="Swamp" SpdType="U" Default="0" />
</RHSTermCollection>
<s:ConstraintTrkCollection xmlns:s="http://www.w3.org/2001/XMLSchema-instance">
	<ConstraintTrkItem Invocation_ID="50180" Start_Interval_DateTime="2021-04-05T18:50:00+10:00" End_Interval_DateTime="2021-04-05T18:50:00+10:00" DynamicRHS="1" GenConSetID="F-I_NIL" Intervention="False" ASConstraintType="NETWORK" SystemNormal="True" Invocation_Group_ID="50180" LimitType="FCAS" />
</s:ConstraintTrkCollection>
</GenericConstraint>

Proposed solution is to skip linking constraints if key error is raised.