Bug 198270 Copying an aggregate does not make a copy, only a reference
In a table with groups or multiple columns, create an aggregate in a footer or a header. Copy the aggregate to another cell in a footer or a header. Make changes to the new aggregate appropriate to its new location. Expected result: The changes appear in only the new copy of the aggregate. Actual result: The changes appear in both aggregates because the new aggregate is not a copy, but a reference to the same aggregate as the original.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/DataColumnBindingDialog.java
}
	}
	public void setAggreate( boolean isAggregate )
	{
		this.isAggregate = isAggregate;
		if ( isAggregate )
		{
			setTitle( AGG_BUILDER_TITLE );
		}
		if ( this.dialogHelper != null )
		{
			this.dialogHelper.setAggregate( isAggregate );
		}
	}
	public void setExpressionProvider( ExpressionProvider expressionProvider )
	{
		this.expressionProvider = expressionProvider;
	}
	protected boolean isForceBinding( )
	{
		return true;
	}
	protected Control createDialogArea( Composite parent )
	{
		Composite composite = (Composite) super.createDialogArea( parent );
		dialogHelper.setExpressionProvider( expressionProvider );
		dialogHelper.createContent( composite );
		UIUtil.bindHelp( composite, IHelpContextIds.DATA_COLUMN_BINDING_DIALOG );
		return composite;
	}