Hello,

I don’t want to be rude but I must warn you that this edit is misguided.

I already spent a few hours yesterday fixing all the newbie mistakes and the mess, without complaining to you about the poor quality.
But now you are doing it again, so I feel I have to warn you.

Let me explain.

"L’église a été désacralisée".  Yes, we all agree about this, that is why it was not tagged as "amenity=place_of_worship".  Instead, it was tagged as "was:amenity=place_of_worship".  This is a recognized lifecycle prefix, which is commonly used to mention that something *was* of a certain kind and is not that anymore.  Removing this is absurd, because the tags were exactly like in the situation you describe.  You also removed wikidata/wikipedia tags on the object, please do not do this.

Also, you removed a valid "ref:UrbIS" tag from the church buiding.  This tag is the primary key of all buildings in the Brussels-Capital Region.  Please don’t mess with building geometries and don’t remove such tags.  Dealing with buildings is complicated and is impossible to do correctly with basic tools like the iD online editor.  The other day, you endeavoured to erase buildings and redraw them by tracing… on aerial imagery.  Please be aware that it can take 5 minutes to change the map, using the simple online editor, but 10 times more to restore a decent situation.

Have a nice day.