basalt-26.3.2-rc-20260908: sql/stats: TestCacheAutoRefresh failed

sql/stats.TestCacheAutoRefresh [failed](https://mesolite.cluster.engflow.com/invocations/default/8e093717-3329-4dab-8a28-3ae7ce8b0293?testReportRun=3&testReportShard=7&testReportAttempt=1#targets-Ly9wa2cvc3FsL3N0YXRzOnN0YXRzX3Rlc3Q=) on basalt-26.3.2-rc-20260908 @ [807558e5e81666af257c811e925e4cae570abc28](https://github.com/cockroachdb/cockroach/commits/807558e5e81666af257c811e925e4cae570abc28):

```
=== RUN TestCacheAutoRefresh
test_log_scope.go:172: test logs captured to: outputs.zip/logTestCacheAutoRefresh3323407664
test_log_scope.go:82: use -show-logs to present logs inline
test_server_shim.go:168: automatically injected an external process virtual cluster under test; see comment at top of test_server_shim.go for details.
```

Parameters:
- attempt=1
- race=true
- run=3
- shard=7
Help

See also: [How To Investigate a Go Test Failure \(internal\)](https://cockroachlabs.atlassian.net/l/c/HgfXfJgM)

[This test on roachdash](https://roachdash.crdb.dev/?filter=status:open%20t:.*TestCacheAutoRefresh.*&sort=title+created&display=lastcommented+project) | [Improve this report!](https://github.com/cockroachdb/cockroach/tree/master/pkg/cmd/bazci/githubpost/issues)

Start with the linked test report for sql/stats.TestCacheAutoRefresh and inspect the captured logs from the failing race-enabled run. Reproduce the failure with the recorded commit and parameters, then trace the cause in the SQL statistics cache-refresh code. Done means the underlying failure is fixed and the test passes reliably under race detection.

Written by the indexing model from the issue text.