This changeset edited no geometry and made the following tag-only modifications:

Filter: way["building"="apartments"]["addr:housenumber"][!("addr:city"|"addr:state"|"addr:country")];

Added:
"addr:city=Seattle" | 50 objects
"addr:state=WA" | 14 objects
"addr:country=US" | 1188 objects

Removed:
"addr:housenumber:source=*" | 1 object
"tiger:county=*" | 1 object
"source:path=*" | 1 object
"source:addr=*" | 1 object
"source:addr:id=*" | 22 objects
"source=*" except where "source~.*http.*" | 680