Bug in GORMSessionFactoryDefinitionParser

In GORM of Grails 1.1, I found this bug.
if you define context.xml like this.

<bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
 <property name="sessionFactory" ref="sessionFactory" />
</bean>
<gorm:sessionFactory base-package="org.grails.samples"
  data-source-ref="dataSource" message-source-ref="messageSource" transaction-manager-ref="txManager">
 <property name="configLocations" value="classpath:hibernate.cfg.xml" />
 <property name="hibernateProperties">
  <util:map>
   <entry key="hibernate.hbm2ddl.auto" value="update" />
  </util:map>
 </property>
</gorm:sessionFactory>

An attribute transaction-manager-ref is not necessary, for Grails will create transactionManager (org.springframework.orm.hibernate3.HibernateTransactionManager), but whether you provide your transaction manager, you will see this exception.

Exception in thread "main" org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'transactionManager' is defined
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:387)
at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:971)
at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:758)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:422)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
at org.springframework.context.support.ClassPathXmlApplicationContext.(ClassPathXmlApplicationContext.java:139)
at org.springframework.context.support.ClassPathXmlApplicationContext.(ClassPathXmlApplicationContext.java:83)
at com.gable.grails.test.interoperation.App.main(App.java:15)

In found in GORMSessionFactoryDefinitionParser on line 213.

   targetRegistry.registerAlias("transactionManager", transactionManagerRef);

I thought this line intend to give transactionManager being an alias of transactionManagerRef.
It should be

   targetRegistry.registerAlias(transactionManagerRef, "transactionManager");