OptimisticLockingTxClusterExtendedStatisticLogicTest, like PessimisticLockingTxClusterExtendedStatisticLogicTest, requires the coordinator to own the test key, and that is no longer guaranteed since SyncConsistentHashFactory became the default CH factory.

The ISPN-4851 commit included a fix for PessimisticLockingTxClusterExtendedStatisticLogicTest, and OptimisticLockingTxClusterExtendedStatisticLogicTest needs a similar fix.