[pwizla]

This PR updates the $null and $notNull operator description on the REST API filters page: they now accept the same strict boolean values as boolean attributes (true/t/1 and false/f/0, case-insensitive), a null or undefined operand still reads as false, and any other value now returns a 400 ValidationError instead of being read as true.

Documents #28513

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Project	Deployment	Actions	Updated
documentation	Ready	Preview	Nov 13, 2026 1:40am UTC

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