Data in provider field messed up

Example: https://api.unhide.helmholtz-metadaten.de/source?id=https://www.hzdr.de/publications/Publ-27579-1

The data in the provider field is messed up. But since this is the original json source, one has to trace back if the data was really received like this, and this is our issue, or rather an issue on the providers side.