TUI - crash during searching a witness

It can be repeated also on the version without the updated textual, but not so often.

latest.log

I have a profile with 5 traced accounts. Steps:

1. Go to the witnesses page.
2. Change a node.
3. Go to the search section: insert gtg then Search, Clear.
4. If nothing happens, repeat.

It doesn't happen every time, but very often.