I created a segment for "pageurl" contains "myparam=1".
When displaying that segment, I have many problems, for example clicking on visitor-log for a city results in the page getting reloaded, but no details displayed.
some other actions result in an error-message
maybe the "=" symbol in the segment is a problem?
Thanks @cyberbeat for the report! I could reproduce the bug, and created it again (forgot about this one) in #8776