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Keyed component instance reconciliation: Render order follows incoming · case 05

Render order follows incoming.

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Case contract

A component instance is identified by sibling key plus component type. Reordering preserves its state, changing type remounts, removed keys lose state, and replacement cleanup happens before mount. Operation render-order-follows-incoming has the six explicit input/output oracles below.

Why this case matters

An offline client lifecycle model that isolates a state-management defect without DOM rendering or network services.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
render-order-follows-incoming scenario 1	`["a", "b"]`	`["b", "a"]`	Failed

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