The key-order test wrote its products and then reopened the store, whose
snapshot already returned them in key order, so removing the explicit OrderBy
still passed. The products are now committed into the open cache in z-then-a
order, the test asserts that enumeration order first, and Materialize must
still pick lamp-a.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>