### CI Link

https://gradle-enterprise.elastic.co/s/n6mmfb3uwtq7q

### Repro line

./gradlew ':server:test' --tests "org.elasticsearch.search.internal.ContextIndexSearcherTests.testIntersectScorerAndRoleBits" \   -Dtests.seed=E99DBC08AEFDABC1 \   -Dtests.locale=und \   -Dtests.timezone=America/Santarem \   -Druntime.java=20

### Does it reproduce?

Yes

### Applicable branches

main

### Failure history

_No response_

### Failure excerpt

10:13:31 org.elasticsearch.search.internal.ContextIndexSearcherTests > testIntersectScorerAndRoleBits FAILED
10:13:31     java.lang.AssertionError: The top-reader used to create Weight is not the same as the current reader's top-reader (org.apache.lucene.index.CompositeReaderContext@4afc5040
10:13:31         at __randomizedtesting.SeedInfo.seed([E99DBC08AEFDABC1:41ACDD81C7F3BEAA]:0)
10:13:31         at org.apache.lucene.search.TermQuery$TermWeight.scorer(TermQuery.java:105)
10:13:31         at org.apache.lucene.search.Weight.scorerSupplier(Weight.java:136)
10:13:31         at org.apache.lucene.search.LRUQueryCache$CachingWrapperWeight.scorerSupplier(LRUQueryCache.java:759)
10:13:31         at org.apache.lucene.tests.search.AssertingWeight.scorerSupplier(AssertingWeight.java:80)
10:13:31         at org.apache.lucene.search.ConstantScoreQuery$1.scorerSupplier(ConstantScoreQuery.java:153)
10:13:31         at org.apache.lucene.tests.search.AssertingWeight.scorerSupplier(AssertingWeight.java:80)
10:13:31         at org.apache.lucene.tests.search.AssertingWeight.scorer(AssertingWeight.java:66)
10:13:31         at org.elasticsearch.search.internal.ContextIndexSearcherTests.testIntersectScorerAndRoleBits(ContextIndexSearcherTests.java:157)

server/src/test/java/org/elasticsearch/index/query/functionscore/FunctionScoreTests.java
randomFrom(ScoreMode.values()),
            randomBoolean() ? new ScoreFunction[] { function, otherFunc } : new ScoreFunction[] { otherFunc },
            combineFunction,
            minScore,
            maxBoost
        );
        FunctionScoreQuery[] queries = new FunctionScoreQuery[] { diffQuery, diffMaxBoost, diffMinScore, diffFunc, q, diffCombineFunc };
        final int numIters = randomIntBetween(20, 100);
        for (int i = 0; i < numIters; i++) {
            FunctionScoreQuery left = randomFrom(queries);
            FunctionScoreQuery right = randomFrom(queries);
            if (left == right) {
                assertEquals(left, right);
                assertEquals(left.hashCode(), right.hashCode());
            } else {
                assertNotEquals(left + " == " + right, left, right);
            }
        }
    }
    public void testExplanationAndScoreEqualsEvenIfNoFunctionMatches() throws IOException {
        IndexSearcher localSearcher = newSearcher(reader);
        CombineFunction combineFunction = randomFrom(
            new CombineFunction[] {
                CombineFunction.SUM,
                CombineFunction.AVG,
                CombineFunction.MIN,
                CombineFunction.MAX,
                CombineFunction.MULTIPLY,
                CombineFunction.REPLACE }
        );