When you click the 3 dots at a user profile[1] to see all the groups the user is a member of (and where you are allowed to know that), you are taken to a filtered group page:
For example https://meta.discourse.org/g?username=Discourse. When I continue browsing the forum and later use the link to the groups page in the sidebar, I still see only the groups of that user. Is it possible to remove that filter without editing the URL?
I think I’m seeing a similar stickiness to the ?status=deleted
type topic filters as well.
Now that you mention it, I remember that I also had problems with “?order=votes”. However, the filter is no longer displayed in the URL but still has an effect. But it only happenes with a reload in between.