Strapi 3: Filenames don't change

System Information
  • Strapi Version: 3.6.8
  • Operating System: Linux
  • Database: SQLite
  • Node Version: 14.18.3
  • NPM Version: 6.14.15
  • Yarn Version: 1.22.15

If I change a filename in the media preview (see screenshot), the name of the file does not really change.
If I copy the link, it still has the old filename.

That is not good and means, that I have to rename my images locally and reupload them.

Is there a workaround or a fix? Or am I missing something here?