I have to correct my previous comment partly: At least between Neuss-Süd and Neuss-Hafen new labels have been put on the signs (A57 and A46). Don't know if this is only meant as a direction hint, as the website still reports a gap.

This changeset adds the additional ref A46 to the part of motorway A57between junctions Neuss-West and Neuss-Süd.
Unfortunately you did not add a source to the changeset.
At all signs in this area only A57 is referenced. The website http://www.a46.nrw.de/#strecke as reports a gap of A46 at this area.
If there's no seriously source I recommend to revert this changeset

It seems within this changeset objects with tags like natural/landuse=grass/grassland have been changed randomly or even deleted.
E.g. in one case natural=grass has been changed to natural=grassland (which is quite ok IMHO), in other cases the whole way with tag natural=grass has been deleted completely.
Due to the affected area it looks like an automated mass edit without any local knowledge.
DWG has been informed already.