Revamp LRU cache #6562
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Revamp LRU cache #6562
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Has the effect of fixing the bug in the LRU cache where (a) it doesn't actually cache non-empty keys (b) the empty key's entry gets pointed at the most recent non-empty value
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Also cherry-picked to v2.4.x with 1e5ef1f. |
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Note the comment at #6203 (comment) about backwards compatibility. |
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Description
Fixes #6202. Replaces #6203. This is basically the fix pushed in #6207.