Bug 165897 [Salesforce Project]Table column lost its data when insert a new column to the right
Reproduce steps: 1. Get and install BIRT Salesforce ODA driver. 2. Download the attached BIRT report design. 3. Insert a new column to the right of Negotiation/Review. 4. Input name as "Month Grand Total" and expression as following: row["Prospecting"]+row["Qualification"]+row["NeedsAnalysis"]+row["ValueProposition"]+row["IdDecisionMakers"]+row["PerceptionAnalysis"]+row["ProposalPriceQuote"]+row["NegotiationReview"] 5. Run the report and Negotiation/Review column lost its data.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/expression/MultiPassExpressionCompiler.java
int offset = ( (Number) groupLevelObj ).intValue( );
			if ( offset < 0 )
				groupLevel = currentGroupLevel + offset;
			else
				groupLevel = offset;
		}
		switch ( exprType )
		{
			case IExpressionProcessor.FILTER_ON_GROUP_EXPR :
				if ( groupLevel != currentGroupLevel )
				{
					DataException e = new DataException( ResourceConstants.INVALID_GROUP_LEVEL,
							aggr.getName( ) );
					throw e;
				}
				break;
			case IExpressionProcessor.SORT_ON_GROUP_EXPR :
				if ( groupLevel < 0 || groupLevel > currentGroupLevel )
				{
					DataException e = new DataException( ResourceConstants.INVALID_GROUP_LEVEL,
							aggr.getName( ) );
					throw e;
				}
				break;
			default :
				
				if ( groupLevel < 0 )
				{
					DataException e = new DataException( ResourceConstants.INVALID_GROUP_LEVEL,
							aggr.getName( ) );