01d8236c47
Since the invariant we're trying to protect is that every realm has an active owner, we should check precisely that. The root bug here, which the parent commit failed to fix properly, is that we were doing a "greater than" check when we clearly originally meant a "less than" check -- lower role numbers have more permissions.
Zulip overview
Zulip is a powerful, open source group chat application that combines the immediacy of real-time chat with the productivity benefits of threaded conversations. Zulip is used by open source projects, Fortune 500 companies, large standards bodies, and others who need a real-time chat system that allows users to easily process hundreds or thousands of messages a day. With over 500 contributors merging over 500 commits a month, Zulip is also the largest and fastest growing open source group chat project.
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