fix: drop entries before clear_slow - #17
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clear_slow zeroed bucket storage without first dropping initialized entries. For K or V types that own heap data, this leaked resources and prevented Bucket::drop from observing the old ALIVE_BIT later. Drop the bucket slice when entries need drop before reinitializing the storage with zeroed buckets, and add a regression test that tracks drops across clear_slow and cache drop.
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clear_slow zeroed bucket storage without first dropping initialized entries. For K or V types that own heap data, this leaked resources and prevented Bucket::drop from observing the old ALIVE_BIT later.
Drop the bucket slice when entries need drop before reinitializing the storage with zeroed buckets, and add a regression test that tracks drops across clear_slow and cache drop.