A whole list's read checks the collection, so it exercised every write
that changed it since the last check. A create whose entity an
unmodelled delete removed, and a 404 then showed gone, was still among
them, so a whole list taken afterwards confirmed a create it cannot
show. The absent entity now leaves every write's claim on its
collection, as a modelled delete's replacement does.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
