Fix Error in Console in motion-detail

[Elblinator]

Describe the bug
If the meeting's language is not english and a motion-detail page is reloaded then there is running an Error through the console

How to Reproduce

1. Create a meeting in the language German (or non English language)
2. Navigate into the meeting
3. Create a motion
4. On the motion-detail page reload the page
5. Following Error is running through the console

motion-view.component.ts:206 ERROR Error: Parameter "key" is required and cannot be empty
    at _TranslateService.instant (ngx-translate-core.mjs:696:13)
    at _MotionViewComponent.setTitle (base.component.ts:97:49)
    at _MotionViewComponent.onMotionUpdated (motion-view.component.ts:234:15)

Expected behavior
What ever is causing this Error should be fixed

[reiterl]

I cannot reproduce the failure. Tested with German meeting, motion, motion w. amendments.

[reiterl]

I cannot reproduce it.
So I looked at the code. I'm not sure why this happen: It seems like the ViewMotion.getTitle() delivers a undefined, null or perhaps empty string. That should not happen, as title is required. Perhaps broken data?

I still needs a way to reproduce this.

[reiterl]

I have seen the error message few times with empty spaces in motion view, but not every time. So, I am sure why this happens.