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.