branch-4.0: [fix](cloud) Hide KV_TXN_MAYBE_COMMITTED from clients #62244#62642
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yiguolei merged 1 commit intobranch-4.0from Apr 22, 2026
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branch-4.0: [fix](cloud) Hide KV_TXN_MAYBE_COMMITTED from clients #62244#62642yiguolei merged 1 commit intobranch-4.0from
yiguolei merged 1 commit intobranch-4.0from
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Problem Summary: Preserve MetaService retry handling for KV_TXN_MAYBE_COMMITTED internally, but downgrade the final response code to KV_TXN_COMMIT_ERR so older BE/FE clients do not treat the proto2 unknown enum as OK. ### Release note None ### Check List (For Author) - Test: Cloud unit test - ./run-cloud-ut.sh --run --filter='meta_service_test:MetaServiceTxnStoreRetryableTest.*' -j 8 - Behavior changed: Yes (MetaService no longer exposes KV_TXN_MAYBE_COMMITTED to clients; it still retries internally and returns KV_TXN_COMMIT_ERR externally)
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Cherry-picked from #62244