[Therion] flag duplicate and explo statistics

Hi, I've two surveys files from the same cave part, that was reworked. I've now an old survey of a old team ('date', 'explo-date' and 'team' and 'explo-team' was applied) and a new 're'survey from a new team (only 'date' and 'team' was applied). All data of the old file was flagged as 'duplicate'. Because to become a real cave-length from the new survey. Now the map don't show a explo-statistic from the old 'duplicated' survey. Is this by design? Or is it possible to show this? I would protect the work of the old team. But the new survey has new parts. I would not copy the explo-data from the old to the new survey. //dirk