Hi, 
did the cemetery expand to this ground?

If so it's better to make it one cemetery, not two cemeteries near each other with the same name.

You can achieve this in two ways.
1) Remove the new smaller cemetery and expand the bigger one to this new area.
2) If you really don't want to include road in the cemetery, then you can use multipolygons. It's a bit more complex: https://wiki.openstreetmap.org/wiki/Relation:multipolygon
In this case, you'll have both areas as part of multipolygon relation and they both will have "outer" role.