CompatModeClusteredCacheTest.testMerge test failure

Caused by: org.infinispan.util.UserRaisedFunctionalException: java.lang.ClassCastException: [B cannot be cast to org.infinispan.query.test.Person
	at org.infinispan.commands.functional.functions.MergeFunction.apply(MergeFunction.java:44)
	at org.infinispan.commands.functional.functions.MergeFunction.apply(MergeFunction.java:19)
	at org.infinispan.commands.functional.ReadWriteKeyCommand.perform(ReadWriteKeyCommand.java:100)
	at org.infinispan.interceptors.impl.CallInterceptor.visitCommand(CallInterceptor.java:29)
	at org.infinispan.interceptors.BaseAsyncInterceptor.invokeNext(BaseAsyncInterceptor.java:56)
	at org.infinispan.interceptors.distribution.BaseDistributionInterceptor.handleNonTxWriteCommand(BaseDistributionInterceptor.java:260)
	at org.infinispan.interceptors.distribution.NonTxDistributionInterceptor.visitReadWriteKeyCommand(NonTxDistributionInterceptor.java:137)
	at org.infinispan.commands.functional.ReadWriteKeyCommand.acceptVisitor(ReadWriteKeyCommand.java:110)
	at org.infinispan.interceptors.BaseAsyncInterceptor.invokeNextThenAccept(BaseAsyncInterceptor.java:98)
	at org.infinispan.query.backend.QueryInterceptor.handleDataWriteCommand(QueryInterceptor.java:177)