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#4537 — 6.1.7.3, [[GetOwnProperty]]: Value attribute change if configurable = false


6.1.7.3 Invariants of the Essential Internal Methods

[[GetOwnProperty]] (P)

4th bullet point:
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If P’s attributes other than [[Writable]] may change over time or if the property might disappear, then P’s [[Configurable]] attribute must be true.
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That description is not quite correct: The [[Value]] attribute may change if [[Configurable]] = false and [[Writable]] = true.