This is just moving the goalposts. Google Docs doesn&#x27;t prevent this and nobody considers it a bug. Heck, a single-user textarea box doesn&#x27;t prevent you from making this sort of logic error yourself (I do it all the time) and nobody considers it a bug.<p>&quot;Robust&quot; and &quot;self-healing&quot; in this case are with respect to network faults and browser bugs that cause bizarre behavior that can confuse users.