Bug 120068 TOC Item Expression is added automatically when adding the group key
Description: TOC Item Expression is added automatically when adding the group key Steps to reproduce: 1.Add a table binding with the dataset 2.Choose the table, add a group(say goupkey:row["CUSTOMERNUMBER"]) 3.Click "group" to invoke "Edit Group" dialog Expected result: Nothing in TOC Item Expression Actual result: The group key (row["CUSTOMERNUMBER"]) is added to the TOC Item Expression
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/GroupDialog.java
{
				newKey = keyChooser.getText( );
			}
			else
			{
				newKey = DEUtil.getExpression( columnList.get( index ) );
			}
			if ( !newKey.equals( oldKey ) )
			{
				inputGroup.setKeyExpr( newKey );
				SlotHandle slotHandle = null;
				if ( inputGroup instanceof ListGroupHandle )
				{
					slotHandle = inputGroup.getHeader( );
				}
				else if ( inputGroup instanceof TableGroupHandle )
				{
					if ( inputGroup.getHeader( ).getCount( ) != 0 )
					{
						RowHandle rowHandle = ( (RowHandle) inputGroup.getHeader( )
								.get( 0 ) );
						CellHandle cellHandle = (CellHandle) rowHandle.getCells( )
								.get( 0 );
						slotHandle = cellHandle.getContent( );
					}
				}
				if ( slotHandle != null )
				{
					Object insertObj = index == -1 ? newKey
							: columnList.get( index );