Housenumber sometimes renders in a corner

[danieldegroot2]

Expected behavior

Housenumbers on buildings always render in the approx. center of the building

Actual behavior

Housenumber on one of slightly non-square buildings renders in its northern corner (at least on zoom 19). There doesn't seem to be anything which could cause this rendering (ie. duplicate nodes).

This does not happen on the CyclOSM or Humanitarian layers on any of their zoom levels.

Is this due to tile boundary logic?

Screenshots with links illustrating the problem

https://www.openstreetmap.org/way/300990833

https://www.openstreetmap.org/way/300990817

[imagico]

Duplicate of #3857.

Note this is not exclusively a matter of the (non-rectangular) shape, it is also a matter of rotation. As pointed out in #4241 (comment) ST_PointOnSurface() is not invariant against rotation.