Error on clearing the contact in the mount wizzard

Summary

We currently have an error on the develop version when we clear the contact field in the mount wizzard.

We don't have this on GFZ staging at the moment. Seems to be dev only.

Steps to reproduce

• start with empty db
• create a device
• create a config
• go into the mount wizzard
• insert start date & continue
• select configuration as base node & continue
• search, select the device & continue
• click in the contact field & remove the entry

What is the current bug behavior?

It just switches to the error page.

What is the expected correct behavior?

It should mark the contact as required.

Some logs and/or screenshots

Possible fixes

There seem to be some kind of getter that tries to access the firstname from the null value. Maybe we can add there some additional null handling to get out with a combined string that contains null.

ToDo's

• Bug reproduced
• Cause found
• Bug fixed