User timeline confusion when navigating between user pages

Going to a users page and then switching to another user will keep the old user timeline fetcher alive, so the two will constantly overwrite each other and lead to a very buggy experience.

Yeah, #120. I'll be working on it. I think I've grasped the essence of the bug.

yeah, that's the same issue

assigned to @hj

mentioned in merge request !390 (merged)

closed via merge request !390 (merged)

mentioned in commit b33aa46d