Unfortunately, the German trial court in the Reiss-Engelhorn Museum of the City of
Mannheim v. Wikimedia Foundation case has ruled in favor of REM.
See
https://commons.wikimedia.org/wiki/Commons:Village_pump/Copyright#Info_abou…
for details
and
https://blog.wikimedia.org/2015/11/23/lawsuit-public-domain-art/ for the background