Contact addresses sometimes don't have a street number
In some areas, contact bubbles don't show the street number of the address, even though it's present in the contact info. This is because Maps geocodes the address to find its location. In areas where OSM does not have per-building address information, the street number is not present in the geocode result, so it is dropped from the GeocodePlace.
Commenting out these six lines fixes the issue. However, the comment says "Make sure we do not lie about how good our resolution is". I'm not sure that's necessary; surely if the street address is included in the contact info it is correct and should not be dropped? The marker might be in the wrong place, but that doesn't make the address invalid.