The two objects here are for different things.
https://www.openstreetmap.org/node/8144175508
https://www.openstreetmap.org/node/8144175509

One is a tall monument.
The other one is mapped as an "eternal flame".

There is no data duplication.
On the contrary, your edit in https://www.openstreetmap.org/changeset/178551382 added a name on the wrong object and will be erased.