Cannot create entry in AUTHORS table when running build from Mercurial repository

2010-09-04 13:14:49,553 ERROR [BAM::Default Agent::Agent:pool-4-thread-1] [BuildAgentControllerImpl] Unknown exception occurred on 'Default Agent'. Agent will attempt to recover its normal operation...
java.lang.RuntimeException: java.lang.Exception: Could not save the build results BuildResults: RAN88534083-MAIN88534083-DEFAULT-1. Data could be in an inconsistent state.
	at com.atlassian.bamboo.v2.build.agent.LocalBuildResultProcessor.processBuildResult(LocalBuildResultProcessor.java:146)
	at com.atlassian.bamboo.v2.build.agent.BuildAgentControllerImpl.waitAndPerformBuild(BuildAgentControllerImpl.java:115)
	at com.atlassian.bamboo.v2.build.agent.DefaultBuildAgent$1.run(DefaultBuildAgent.java:102)
	at com.atlassian.bamboo.build.pipeline.concurrent.NamedThreadFactory$2.run(NamedThreadFactory.java:47)
	at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.Exception: Could not save the build results BuildResults: RAN88534083-MAIN88534083-DEFAULT-1. Data could be in an inconsistent state.
	at com.atlassian.bamboo.v2.build.agent.BuildResultsSummaryPersisterImpl.saveBuild(BuildResultsSummaryPersisterImpl.java:112)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:592)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:304)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
	at $Proxy39.saveBuild(Unknown Source)
	at com.atlassian.bamboo.v2.build.agent.LocalBuildResultProcessor.processBuildResult(LocalBuildResultProcessor.java:141)
	... 4 more
Caused by: java.lang.RuntimeException: AuthorCreatorService must not be called within an existing transaction.
	at com.atlassian.bamboo.utils.BambooValidate.notInsideTransaction(BambooValidate.java:39)
	at com.atlassian.bamboo.author.AuthorCreatorServiceImpl.createAuthorIfMissing(AuthorCreatorServiceImpl.java:31)
	at com.atlassian.bamboo.author.AuthorCreatorServiceImpl.createMissingAuthors(AuthorCreatorServiceImpl.java:62)
	at com.atlassian.bamboo.v2.build.agent.BuildResultsSummaryPersisterImpl.saveBuild(BuildResultsSummaryPersisterImpl.java:76)
	... 16 more