NullPointerException: Cannot invoke "com.hazelcast.query.impl.TSPartitionedIndexImpl.getHybridLog()" because "index" is null [HZ-4543]

[Danny-Hazelcast]

https://jenkins.hazelcast.com/view/t-store/job/split-tstore-All/101/console

/home/ec2-user/workspace/workspace/split-tstore-All/5.4.0-SNAPSHOT/2024_03_03-00_30_02/tstore/tstoreExtra

java.lang.NullPointerException: Cannot invoke "com.hazelcast.query.impl.TSPartitionedIndexImpl.getHybridLog()" because "index" is null
	at com.hazelcast.internal.tstore.compaction.IndexPartitionCompactorStep.getHybridLogOrNull(IndexPartitionCompactorStep.java:49)
	at com.hazelcast.internal.tstore.compaction.AbstractPartitionCompactorStep.isOffloadStep(AbstractPartitionCompactorStep.java:268)
	at com.hazelcast.internal.tstore.compaction.AbstractPartitionCompactorStep.isOffloadStep(AbstractPartitionCompactorStep.java:25)
	at com.hazelcast.map.impl.operation.steps.engine.LinkerStep.isOffloadStep(LinkerStep.java:37)
	at com.hazelcast.map.impl.operation.steps.engine.StepSupplier.createRunnable(StepSupplier.java:135)
	at com.hazelcast.map.impl.operation.steps.engine.StepSupplier.runStepWithState(StepSupplier.java:227)
	at com.hazelcast.map.impl.operation.steps.engine.StepSupplier$2.run(StepSupplier.java:164)
	at com.hazelcast.internal.namespace.impl.NoOpUserCodeNamespaceService.runWithNamespace(NoOpUserCodeNamespaceService.java:82)
	at com.hazelcast.internal.namespace.NamespaceUtil.runWithNamespace(NamespaceUtil.java:106)

NPE issue after cluster has been split.

[github-actions]

Internal Jira issue: HZ-4543