I surveyed it this evening and I can confirm that the street has NOT changed.  All the C43 roadsigns granting a 50 kph maxspeed are still there.  You can see some pictures in the note here:
https://www.openstreetmap.org/note/3702883

Maybe you changed the map after reading that the government *intends* to lower the speed regime.  However, OpenStreetMap only maps ground truth and at the moment this street still has roadsigns.

I will undo your edit.