Avoid double getFlushMode call

spring-orm-hibernate4/src/main/java/org/springframework/orm/hibernate4/HibernateTransactionManager.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -452,7 +452,7 @@ public class HibernateTransactionManager extends AbstractPlatformTransactionMana
 			if (!definition.isReadOnly() && !txObject.isNewSession()) {
 				// We need AUTO or COMMIT for a non-read-only transaction.
 				FlushMode flushMode = session.getFlushMode();
-				if (FlushMode.isManualFlushMode(session.getFlushMode())) {
+				if (FlushMode.isManualFlushMode(flushMode)) {
 					session.setFlushMode(FlushMode.AUTO);
 					txObject.getSessionHolder().setPreviousFlushMode(flushMode);
 				}