Bug 148365 dataset script methods management
Create a report with several datasets (scripted ones, in my case). Select the first one, then choose the script tab ; write some script Save the report Select another one, then choose the script tab (same method ; write some script Save the report Select the first one again, then change the script DONT save Select the over one : the changes made to the first one appears ! => you may save the repor and search for a while before understanding the pb...
UI/org.eclipse.birt.report.designer.ui.editors.schematic/src/org/eclipse/birt/report/designer/internal/ui/editors/script/JSEditor.java
if ( desHdl != null && getEditorText( ) != null )
		{
			try
			{
				if ( desHdl instanceof ExtendedItemHandle )
				{
					( (ExtendedItemHandle) desHdl ).setExternalScript( getEditorText( ) );
				}
				else if ( cmbItemLastSelected != null )
				{
					desHdl.setStringProperty( cmbItemLastSelected.getName( ),
							getEditorText( ) );
					selectionMap.put( getModel( ),
							cmbExprListViewer.getSelection( ) );
				}
			}
			catch ( SemanticException e )
			{
				ExceptionHandler.handle( e );
				return false;
			}
		}
		return true;
	}
	/**
	 * Saves input code to model
	 * 
	 */
	public void saveModel( )
	{