suspicious tag combination - waterway=canal together with tunnel=yes

[Maarten Deen]

Yes, a canal can most certainly be in a tunnel. I assume this is the validator that warns about it? There even is a ticket for it:
https://josm.openstreetmap.de/ticket/18815
Where the discussion is largely that a covered/tunneled waterway could not be a canal. I don't understand the discussion. A canal can be in a tunnel. Period.

Regards,
Maarten

> Op 18-02-2021 13:42 schreef Volker Schmidt <voschix at gmail.com>:
> 
>  
> Hi
> Everytime JOSM finds a canal in a tunnel in my edits it gives me this
> warning. But according to the wiki
> <https://wiki.openstreetmap.org/wiki/Key:tunnel>, this tag combination is
> perfectly correct:
> " tunnel=* is used for roads, railway line, canals etc that run in a tunnel
> <https://en.wikipedia.org/wiki/en:Tunnel>."
> 
> Am I missing something?
> 
> Volker
> 
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