text: If there are two real-world objects (the community centre and the church) there should be two OSM objects. Having the building separate from what happens there is common, especially when more than one thing is in the building. You could tag the building as a building (remove the church stuff from teh building) and add two nodes one for the church and one for the community centre if that is a better reflection of the real world. Adding the nodes in roughly the right place inside the building is usual. Just changing the name really doesn't do it for me - but you know the place I don't.