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
}
					else
					{
						inputGroup.clearContents( GroupHandle.FOOTER_SLOT );
					}
				}
			}
			if ( ascending.getSelection( ) )
			{
				inputGroup.setSortDirection( DesignChoiceConstants.SORT_DIRECTION_ASC );
			}
			else
			{
				inputGroup.setSortDirection( DesignChoiceConstants.SORT_DIRECTION_DESC );
			}
		}
		catch ( SemanticException e )
		{
			ExceptionHandler.handle( e );
			return;
		}
		setResult( inputGroup );
		super.okPressed( );
	}
	/**
	 * Returns the internal type index by its value.
	 * 
	 * @param interval
	 */
	private int getIntervalTypeIndex( String interval )