When I run the test locally with no seed and -Dtests.iters=100 I get 7 failures, so less than 10% of the time, but still quite high. I think someone merged something very recently that happened to fail first after my PR. Anyone working on code affecting the DateHistogram?

**Build scan:**
https://gradle-enterprise.elastic.co/s/t2765oinlidb2/tests/:server:test/org.elasticsearch.search.aggregations.bucket.histogram.InternalAutoDateHistogramTests/testSerializationPre830

**Reproduction line:**
`./gradlew ':server:test' --tests "org.elasticsearch.search.aggregations.bucket.histogram.InternalAutoDateHistogramTests.testSerializationPre830" -Dtests.seed=8803810CBB78AC0B -Dtests.locale=ro -Dtests.timezone=Etc/GMT-5 -Druntime.java=17`

**Applicable branches:**
master

**Reproduces locally?:**
Yes

**Failure history:**
https://gradle-enterprise.elastic.co/scans/tests?tests.container=org.elasticsearch.search.aggregations.bucket.histogram.InternalAutoDateHistogramTests&tests.test=testSerializationPre830

**Failure excerpt:**
```
java.lang.AssertionError: expected:<1> but was:<5448336502868150856>

  at __randomizedtesting.SeedInfo.seed([8803810CBB78AC0B:536A9C0AC6C9A12]:0)
  at org.junit.Assert.fail(Assert.java:88)
  at org.junit.Assert.failNotEquals(Assert.java:834)
  at org.junit.Assert.assertEquals(Assert.java:645)
  at org.junit.Assert.assertEquals(Assert.java:631)
  at org.elasticsearch.search.aggregations.bucket.histogram.InternalAutoDateHistogramTests.testSerializationPre830(InternalAutoDateHistogramTests.java:474)
  at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:-2)
  at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
  at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:568)
  at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1758)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:946)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:982)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:996)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at org.apache.lucene.tests.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:44)
  at org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
  at org.apache.lucene.tests.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:45)
  at org.apache.lucene.tests.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
  at org.apache.lucene.tests.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:375)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:824)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:475)
  at com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:955)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:840)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:891)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:902)
  at org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at org.apache.lucene.tests.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:38)
  at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
  at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at org.apache.lucene.tests.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
  at org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
  at org.apache.lucene.tests.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
  at org.apache.lucene.tests.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
  at org.apache.lucene.tests.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:47)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:375)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:831)
  at java.lang.Thread.run(Thread.java:833)

```
server/src/test/java/org/elasticsearch/search/aggregations/bucket/histogram/InternalAutoDateHistogramTests.java
protected InternalAutoDateHistogram createTestInstance(
        String name,
        Map<String, Object> metadata,
        InternalAggregations aggregations,
        long startingDate,
        RoundingInfo[] roundingInfos,
        int roundingIndex,
        DocValueFormat format
    ) {
        int nbBuckets = randomNumberOfBuckets();
        int targetBuckets = randomIntBetween(1, nbBuckets * 2 + 1);
        List<InternalAutoDateHistogram.Bucket> buckets = new ArrayList<>(nbBuckets);
        long interval = randomIntBetween(1, 3);
        long intervalMillis = roundingInfos[roundingIndex].roughEstimateDurationMillis * interval;
        for (int i = 0; i < nbBuckets; i++) {
            long key = startingDate + (intervalMillis * i);
            buckets.add(i, new InternalAutoDateHistogram.Bucket(key, randomIntBetween(1, 100), format, aggregations));
        }
        BucketInfo bucketInfo = new BucketInfo(roundingInfos, roundingIndex, InternalAggregations.EMPTY);
        return new InternalAutoDateHistogram(name, buckets, targetBuckets, bucketInfo, format, metadata, randomNonNegativeLong());
    }
    @Override
    protected boolean supportsSampling() {
        return true;
    }
    @Override
    protected InternalAutoDateHistogram createTestInstance(String name, Map<String, Object> metadata, InternalAggregations aggregations) {
        RoundingInfo[] roundingInfos = AutoDateHistogramAggregationBuilder.buildRoundings(null, null);
        int roundingIndex = between(0, roundingInfos.length - 1);