org.apache.lucene.search.TestSimpleExplanationsWithFillerDocs#testMPQ3 fails reproducible

### Description

Policeman Jenkins failed when executing this test on OpenJ9 JVM, but actually it is reproducible:

```
Java: 64bit/openj9/jdk-17.0.5 -XX:-UseCompressedOops -Xgcpolicy:gencon

1 tests failed.
FAILED: org.apache.lucene.search.TestSimpleExplanationsWithFillerDocs.testMPQ3

Error Message:
java.lang.AssertionError: expected:<0.5828427076339722> but was:<0.5828428268432617>

Stack Trace:
java.lang.AssertionError: expected:<0.5828427076339722> but was:<0.5828428268432617>
at __randomizedtesting.SeedInfo.seed([E853C78F22129ACC:708B13FE3EC459FF]:0)
at app//org.junit.Assert.fail(Assert.java:89)
at app//org.junit.Assert.failNotEquals(Assert.java:835)
at app//org.junit.Assert.assertEquals(Assert.java:555)
at app//org.junit.Assert.assertEquals(Assert.java:685)
at app//org.apache.lucene.tests.search.CheckHits.verifyExplanation(CheckHits.java:503)
at app//org.apache.lucene.tests.search.CheckHits.verifyExplanation(CheckHits.java:428)
at app//org.apache.lucene.tests.search.CheckHits.verifyExplanation(CheckHits.java:428)
at app//org.apache.lucene.tests.search.CheckHits$ExplanationAsserter.collect(CheckHits.java:623)
at app//org.apache.lucene.tests.search.AssertingLeafCollector.collect(AssertingLeafCollector.java:52)
at app//org.apache.lucene.tests.search.AssertingCollector$1.collect(AssertingCollector.java:66)
at app//org.apache.lucene.tests.search.AssertingLeafCollector.collect(AssertingLeafCollector.java:52)
at app//org.apache.lucene.tests.search.AssertingLeafCollector.collect(AssertingLeafCollector.java:52)
at app//org.apache.lucene.tests.search.AssertingLeafCollector.collect(AssertingLeafCollector.java:52)
at app//org.apache.lucene.tests.search.AssertingLeafCollector.collect(AssertingLeafCollector.java:52)
at app//org.apache.lucene.search.Weight$DefaultBulkScorer.scoreRange(Weight.java:282)
at app//org.apache.lucene.search.Weight$DefaultBulkScorer.score(Weight.java:254)
at app//org.apache.lucene.tests.search.AssertingBulkScorer.score(AssertingBulkScorer.java:101)
at app//org.apache.lucene.search.ReqExclBulkScorer.score(ReqExclBulkScorer.java:46)
at app//org.apache.lucene.tests.search.AssertingBulkScorer.score(AssertingBulkScorer.java:101)
at app//org.apache.lucene.search.TimeLimitingBulkScorer.score(TimeLimitingBulkScorer.java:76)
at app//org.apache.lucene.search.BulkScorer.score(BulkScorer.java:38)
at app//org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:776)
at app//org.apache.lucene.tests.search.AssertingIndexSearcher.search(AssertingIndexSearcher.java:78)
at app//org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:694)
at app//org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:688)
at app//org.apache.lucene.tests.search.CheckHits.checkExplanations(CheckHits.java:336)
at app//org.apache.lucene.tests.search.QueryUtils.checkExplanations(QueryUtils.java:114)
at app//org.apache.lucene.tests.search.QueryUtils.check(QueryUtils.java:144)
at app//org.apache.lucene.tests.search.QueryUtils.check(QueryUtils.java:140)
at app//org.apache.lucene.tests.search.QueryUtils.check(QueryUtils.java:129)
at app//org.apache.lucene.tests.search.CheckHits.checkHitCollector(CheckHits.java:105)
at app//org.apache.lucene.tests.search.BaseExplanationTestCase.qtest(BaseExplanationTestCase.java:110)
at app//org.apache.lucene.search.TestSimpleExplanationsWithFillerDocs.qtest(TestSimpleExplanationsWithFillerDocs.java:116)
at app//org.apache.lucene.search.TestSimpleExplanations.testMPQ3(TestSimpleExplanations.java:229)
at [java.base@17.0.5/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0](mailto:java.base@17.0.5/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0)(Native Method)
at [java.base@17.0.5/jdk.internal.reflect.NativeMethodAccessorImpl.invoke](mailto:java.base@17.0.5/jdk.internal.reflect.NativeMethodAccessorImpl.invoke)(NativeMethodAccessorImpl.java:77)
at [java.base@17.0.5/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke](mailto:java.base@17.0.5/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke)(DelegatingMethodAccessorImpl.java:43)
at [java.base@17.0.5/java.lang.reflect.Method.invoke](mailto:java.base@17.0.5/java.lang.reflect.Method.invoke)(Method.java:568)
at app//com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1758)
at app//com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:946)
at app//com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:982)
at app//com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:996)
at app//org.apache.lucene.tests.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:48)
at app//org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
at app//org.apache.lucene.tests.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:45)
at app//org.apache.lucene.tests.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
at app//org.apache.lucene.tests.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
at app//org.junit.rules.RunRules.evaluate(RunRules.java:20)
at app//com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at app//com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:390)
at app//com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:843)
at app//com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:490)
at app//com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:955)
at app//com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:840)
at app//com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:891)
at app//com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:902)
at app//org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
at app//com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at app//org.apache.lucene.tests.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:38)
at app//com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
at app//com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
at app//com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at app//com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at app//org.apache.lucene.tests.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
at app//org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
at app//org.apache.lucene.tests.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
at app//org.apache.lucene.tests.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
at app//org.apache.lucene.tests.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:47)
at app//org.junit.rules.RunRules.evaluate(RunRules.java:20)
at app//com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at app//com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:390)
at app//com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:850)
at [java.base@17.0.5/java.lang.Thread.run](mailto:java.base@17.0.5/java.lang.Thread.run)(Thread.java:857)
```

Reproduce failure on Java 19 (Hotspot):

```
org.apache.lucene.search.TestSimpleExplanationsWithFillerDocs > test suite's output saved to C:\Users\Uwe Schindler\Projects\lucene\lucene\lucene\core\build\test-results\test\outputs\OUTPUT-org.apache.lucene.search.TestSimpleExplanationsWithFillerDocs.txt, copied below:
2> Jan. 03, 2023 6:30:02 PM org.apache.lucene.store.MemorySegmentIndexInputProvider
2> INFORMATION: Using MemorySegmentIndexInput with Java 19
> java.lang.AssertionError: expected:<0.5828427076339722> but was:<0.5828428268432617>
> at __randomizedtesting.SeedInfo.seed([E853C78F22129ACC:708B13FE3EC459FF]:0)
> at org.junit.Assert.fail(Assert.java:89)
> at org.junit.Assert.failNotEquals(Assert.java:835)
> at org.junit.Assert.assertEquals(Assert.java:555)
> at org.junit.Assert.assertEquals(Assert.java:685)
> at org.apache.lucene.tests.search.CheckHits.verifyExplanation(CheckHits.java:503)
```

### Version and environment details

Main and 9.x branches

### Reproduce line

gradlew test --tests TestSimpleExplanationsWithFillerDocs.testMPQ3 -Dtests.seed=E853C78F22129ACC -Dtests.multiplier=3 -Dtests.locale=wo -Dtests.timezone=EST5EDT -Dtests.asserts=true -Dtests.file.encoding=UTF-8

Start with org.apache.lucene.search.TestSimpleExplanationsWithFillerDocs.testMPQ3 and its qtest entry point, then run the provided Gradle command with the listed seed. Compare the expected and actual explanation scores and trace the failure through CheckHits.verifyExplanation. Done means the reproducible test passes on the affected JVM environments without weakening the test's coverage.

Written by the indexing model from the issue text.