RS when copy a suvey course node

<dispatchinfo>
	<componentinfo>
		<compname>luTreeRun</compname>
		<compclass>org.olat.core.gui.components.tree.MenuTree</compclass>
		<extendedinfo>n/a</extendedinfo>
		<event>
			<class&gt;org.olat.core.gui.components.tree.TreeEvent</class&gt;
			<command>ctncl</command>
			<tostring>TreeEvent:{cmd:ctncl, nodeid:99934472877926}</tostring>
		</event>
	</componentinfo>
	<controllerinfo>
		<controllername>org.olat.course.run.RunMainController</controllername>
		<controllername>org.olat.course.run.CourseRuntimeController</controllername>
		<controllername>org.olat.core.commons.fullWebApp.BaseFullWebappController</controllername>
	</controllerinfo>
</dispatchinfo>
					
Throwable: javax.persistence.PersistenceException

message:org.hibernate.PropertyValueException:
 not-null property references a null or transient value : 
org.olat.modules.forms.model.jpa.EvaluationFormParticipationImpl.survey,javax.persistence.PersistenceException

at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:154)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:181)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:188)
at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:810)
at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:788)
at org.olat.modules.forms.manager.EvaluationFormParticipationDAO.createParticipation(EvaluationFormParticipationDAO.java:67)
at org.olat.modules.forms.manager.EvaluationFormManagerImpl.createParticipation(EvaluationFormManagerImpl.java:191)
at org.olat.course.nodes.survey.SurveyRunController.loadOrCreateParticipation(SurveyRunController.java:160)
at org.olat.course.nodes.survey.SurveyRunController.loadOrCreateParticipation(SurveyRunController.java:132)
at org.olat.course.nodes.survey.SurveyRunController.doShowView(SurveyRunController.java:110)

1. cause:

message:not-null
 property references a null or transient value : 
org.olat.modules.forms.model.jpa.EvaluationFormParticipationImpl.survey,org.hibernate.PropertyValueException

at org.hibernate.engine.internal.Nullability.checkNullability(Nullability.java:111)
at org.hibernate.engine.internal.Nullability.checkNullability(Nullability.java:55)
at
 
org.hibernate.action.internal.AbstractEntityInsertAction.nullifyTransientReferencesIfNotAlready(AbstractEntityInsertAction.java:115)
at org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:69)
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:645)
at org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:282)
at org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:263)
at org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:317)
at org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:332)
at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:289)