This is from Flaburgan: https://github.com/diaspora/diaspora/pull/8305/files
I can't find a better way around it. The specs that call `onChangedUnreadStatus` change the environment in ways we can't figure out how to reset cleanly.
When fetching notifications this merges existing notifications and changes
their appearance in the dropdown if the html or the unread status changed.
This doesn't update all notifications in the dropdown but only those that are
returned by the server.
Related to #7247.
