@VLD549: Information in the OSM database is public, this is something you can easily figure out by yourself.

You can click on any object edited here and then look at the "View History" link at the bottom.  Take a look at this road, for insatnce: https://www.openstreetmap.org/way/30103572/history

As you can see, it was called Kerkplein until version 6 on May 2, when user "Robin On Wheels" changed its name into Diesegem.

The changeset you are commenting created version 7, where ValidDistress changed Diesegem into Dijsegem on May 9.  Even if GRB mentions Diesegem, at least ValidDistress wrote a changeset title that perfectly reflect the changes he made.

To discuss why the name was changed from Kerkplein into something else, you’d better write to the user who did it, i.e. Robin on Wheels.

Even better, if you think the name should not have been changed at all, explain the source you are using so that we can decide which source is the most useful to get the correct name on the map.