Fix error causing ClearEventListenerTest failure

Author: dreab8

hibernate-core/src/main/java/org/hibernate/internal/SessionImpl.java

@@ -2259,8 +2259,8 @@ public void afterTransactionCompletion(boolean successful, boolean delayed) {
 		log.tracef( "SessionImpl#afterTransactionCompletion(successful=%s, delayed=%s)", successful, delayed );
 
 		if ( !isClosed() ) {
-			if ( !successful && autoClear ) {
-				clear();
+			if ( autoClear ) {
+				internalClear();
 			}
 		}