Thanks for reporting it ; i see the forum and de PR on github and effectivly it's solved for this part. 

Here it's a little bit more "hazardous" and already show this kind of behaviour for an another area. 

When i created the note it return always 1047 on the building "right click." Now first time it return 1047 , and now it return always 1050. It was the same behaviour with Campus Pacheco before removing special postcode on the landuse.  (but here the special postcode not include the building). I will take screenshot when it return again 1047. 

We (as company) import weekly points on our system with OpenCage Geocoding API  that use Nominatim. And last week (3 avr. 2023 21:10 )  we have some points that are not correctly geocoded and week before with the same dataset the point were correct , same as our last import (10 avr. 2023 14:14) geocoding was correct. So it seam that's depend on the moment you querry Nominatim or what you querry before he return false or not maybe. Will try to reproduce the following days.