I have to agree with GiovanniPen here.
I appreciate your contributions to OSM, but in this case, you've mapped features that don't exist: there are two separate staircases on the sides, not a single one in the center. Additionally, you changed a building:part=terrace area into a way, which is incorrect — building parts must be mapped as areas. This should have been handled by improving the building:part tagging and adding the linear features, not by deleting one to replace it with the other. That approach results in the loss of valid geometry data.