Deleting Topic Type failed
Test Situation
- Snapshot used: deepamehta-standard-5-0-SNAPSHOT-2018-06-27-nightly.zip
- OS: Ubuntu 16.04
- Browser: Firefox 60.0.2
What was observed
I had created a topictype "Flugzeug" with the properties "Registration", "Color" and "Type of aircraft". I then changed my mind and wanted to delete the topic types again. The following error messages appeared: