backlink to event list is missing

Peter Kraume reported an issue

After using the event type selector in the event list and than selecting an event, there is no way back with the history back button since the selector does a form submission.

Reported URL:https://new.typo3.org/event/typo3-user-group-munich/

User Agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36