Multiple results returned for same address

[missinglink]

The following address in Portland 2800 SE 47th Ave is returning multiple (3x) results for the same street.

It's most likely due to how the street is broken up, looking at the base map it seems that the Avenue runs North-South but is broken several times along its path, the East-West divergence is likely above the threshold to be considered the same linestring and so I'm guessing multiple polylines are being generated.

This issue is to investigate this specific case, it's fairly common to see disjunct street segments such as these, so the issue is probably being caused because multiple segments of the road are associated with house number ranges matching the target house number.

It might be due to bad data, or an odd numbering system, or could be a logic error.