**Build scan:**
https://gradle-enterprise.elastic.co/s/5waawlqxebn3y/tests/:x-pack:plugin:spatial:test/org.elasticsearch.xpack.spatial.search.aggregations.bucket.geogrid.GeoHexTilerTests/testGeoGridSetValuesBoundingBoxes_BoundedGeoShapeCellValues

**Reproduction line:**
```
./gradlew ':x-pack:plugin:spatial:test' --tests "org.elasticsearch.xpack.spatial.search.aggregations.bucket.geogrid.GeoHexTilerTests.testGeoGridSetValuesBoundingBoxes_BoundedGeoShapeCellValues" -Dtests.seed=B35C794D1B0FE1E2 -Dtests.locale=zh-Hans-SG -Dtests.timezone=CAT -Druntime.java=20
```

**Applicable branches:**
8.8

**Reproduces locally?:**
No

**Failure history:**
https://gradle-enterprise.elastic.co/scans/tests?tests.container=org.elasticsearch.xpack.spatial.search.aggregations.bucket.geogrid.GeoHexTilerTests&tests.test=testGeoGridSetValuesBoundingBoxes_BoundedGeoShapeCellValues

**Failure excerpt:**
```
java.lang.AssertionError: [7:3] bucket count
Expected: <13>
     but: was <12>

  at __randomizedtesting.SeedInfo.seed([B35C794D1B0FE1E2:BF28C88008EBD073]:0)
  at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:18)
  at org.junit.Assert.assertThat(Assert.java:956)
  at org.elasticsearch.xpack.spatial.search.aggregations.bucket.geogrid.GeoGridTilerTestCase.testGeoGridSetValuesBoundingBoxes_BoundedGeoShapeCellValues(GeoGridTilerTestCase.java:145)
  at jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
  at java.lang.reflect.Method.invoke(Method.java:578)
  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:48)
  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:390)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:843)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:490)
  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:390)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:850)
  at java.lang.Thread.run(Thread.java:1623)

```
x-pack/plugin/spatial/src/test/java/org/elasticsearch/xpack/spatial/search/aggregations/bucket/geogrid/GeoHexTilerTests.java
GEOMETRYCOLLECTION (
              GEOMETRYCOLLECTION (
                POINT(-170 0),
                POINT (-178.5 0)
              )
            )
            """;
        GeoBoundingBox boundingBox = new GeoBoundingBox(new GeoPoint(4E-4, 179.999), new GeoPoint(-4E-4, -179.999));
        Geometry geometry = WellKnownText.fromWKT(StandardValidator.instance(true), true, wkt);
        GeoShapeValues.GeoShapeValue value = geoShapeValue(geometry);
        GeoShapeCellValues cellValues = new GeoShapeCellValues(
            makeGeoShapeValues(value),
            getGridTiler(boundingBox, precision),
            NOOP_BREAKER
        );
        assertTrue(cellValues.advanceExact(0));
        int numBuckets = cellValues.docValueCount();
        int expected = expectedBuckets(value, precision, boundingBox);
        assertThat("[" + precision + "] bucket count", numBuckets, equalTo(expected));
    }
    public void testTroublesomeCellLevel4_BoundedGeoShapeCellValues() throws Exception {
        int precision = 4;
        String polygon = "POLYGON ((150.0 70.0, 150.0 85.91811374669217, 168.77544806565834 85.91811374669217, 150.0 70.0))";
        Geometry geometry = WellKnownText.fromWKT(StandardValidator.instance(true), true, polygon);
        GeoBoundingBox boundingBox = new GeoBoundingBox(
            new GeoPoint(86.17678739494652, 172.21916569181505),
            new GeoPoint(83.01600086049713, 179)
        );
        GeoShapeValues.GeoShapeValue value = geoShapeValue(geometry);
        GeoShapeCellValues cellValues = new GeoShapeCellValues(