Objects of a data layer with no downloaded area at all should be considered as object outside of downloaded area

[skyper]

If you have a data layer without any downloaded area, like a download from overpass or a route relation with all members, all objects are considered to be within a downloaded area but actually they should be considered as outside downloaded area.

This is by far new, though, I have never created a explicit ticket about it, see my comment on #18414.
#16803, #19008, #22820 and #22845 suffer from this misinterpretation.
Basically, all validator test depending on complete data are prone to produce false positive.

[GerdP]

What method/function doesn't work as expected?

[taylor.smock]

In #22845 (the last one I looked at), the originating problem was that DeleteAction.checkAndConfirmOutlyingOperation was called on a node that was not inside a download area (it is called in the worker thread by the fix command).

Steps to reproduce (from comment:1:ticket:22845):

1. Download only nodes via overpass, e.g.

   [out:xml][timeout:90][bbox:{{bbox}}];
   (
     node;
   );
   (._;>;);
   out meta;
   

2. Run the JOSM validator (note: I recommend doing this on a single node instead of the entire dataset)
3. Use the Fix command