Failed on my PR but reproducible on main.

**Build scan:**
https://gradle-enterprise.elastic.co/s/ihsa6rp45s7pi/tests/:server:test/org.elasticsearch.search.internal.ContextIndexSearcherTests/testContextIndexSearcherDenseWithDeletions

**Reproduction line:**
```
./gradlew ':server:test' --tests "org.elasticsearch.search.internal.ContextIndexSearcherTests.testContextIndexSearcherDenseWithDeletions" -Dtests.seed=CC72C52A61B0EED9 -Dtests.locale=en-ZA -Dtests.timezone=Etc/GMT+12 -Druntime.java=20
```

**Applicable branches:**
main

**Reproduces locally?:**
Yes

**Failure history:**
https://gradle-enterprise.elastic.co/scans/tests?tests.container=org.elasticsearch.search.internal.ContextIndexSearcherTests&tests.test=testContextIndexSearcherDenseWithDeletions

**Failure excerpt:**
```
java.lang.AssertionError: 
Expected: an instance of org.apache.lucene.util.FixedBitSet
     but: <org.elasticsearch.lucene.util.MatchAllBitSet@304c196f> is a org.elasticsearch.lucene.util.MatchAllBitSet

  at __randomizedtesting.SeedInfo.seed([CC72C52A61B0EED9:DC24AC130B9BB9E7]:0)
  at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:18)
  at org.junit.Assert.assertThat(Assert.java:956)
  at org.junit.Assert.assertThat(Assert.java:923)
  at org.elasticsearch.search.internal.ContextIndexSearcherTests.doTestContextIndexSearcher(ContextIndexSearcherTests.java:229)
  at org.elasticsearch.search.internal.ContextIndexSearcherTests.testContextIndexSearcherDenseWithDeletions(ContextIndexSearcherTests.java:178)
  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)

```
server/src/test/java/org/elasticsearch/search/internal/ContextIndexSearcherTests.java
contextIndexSearcher.throwTimeExceededException();
                                return new ConstantScoreScorer(this, score(), scoreMode, DocIdSetIterator.all(context.reader().maxDoc()));
                            }
                            @Override
                            public boolean isCacheable(LeafReaderContext ctx) {
                                return false;
                            }
                        };
                    }
                }, manager);
                assertTrue(contextIndexSearcher.timeExceeded());
                assertThat(called[0], equalTo(true));
            } finally {
                if (executor != null) {
                    terminate(executor);
                }
            }
        }
    }
    /**
     * Simulate one or more exceptions being thrown while collecting, through a custom query that throws IOException in its Weight#scorer.
     * Verify that the slices that had to wait because there were no available threads in the pool are not started following the exception,
     * which triggers a cancellation of all the tasks that are part of the running search.
     * Simulate having N threads busy doing other work (e.g. other searches) otherwise all slices can be executed directly, given that
     * the number of slices is dependent on the max pool size.
     */
    public void testCancelSliceTasksOnException() throws Exception {
        try (Directory dir = newDirectory()) {
            indexDocs(dir);
            int numThreads = randomIntBetween(4, 6);