message: Autofix duplicates in POTs in NewFromPOT()
  In addition to doing the auto-correction when loading POTs, do it when
  create new translation files from them too - it is a common situation.
diff: @@ -1341,6 +1341,10 @@ void PoeditFrame::NewFromPOT()
  return;
  }
  + // Silently fix duplicates because they are common in WP world:
  + if (pot->HasDuplicateItems())
  + pot->FixDuplicateItems();
  +
  NewFromPOT(pot);
  }
  }
  