[Geocoding] Housenumber 0 - special handling?

[Sarah Hoffmann]

On Fri, May 22, 2015 at 07:36:16PM +0200, Florian Lohoff wrote:
> 
> Hi,
> can it be that there is special handling for Housenumber 0 in place in
> nominatim?

Not special handling as such but there are quite a few places
that take a shortcut and check for if($housenumber) instead of
checking if($housenumber === null). That is a bug.

> I have a node:
> 
> https://www.openstreetmap.org/node/3535973748
> 
> Which is 
> 
> 54558 Winkel, Reimelshof 0, DE

Are you sure that this the official address or are you just trying to
model that this house has no house number? In the latter case
addr:housename might be the better solution.

Sarah