Adding a translation throws a stacktrace in the console

I can create a translation for say the English document:

/news/2009/01/Launch CMS 7

to a French version. I create the French folders to be

/news/2009/01 and the document Launch CMS 7

Then everything seems to work in CMS, translation is there, but I get a stack trace in console:

18.11.2010 11:34:40 ERROR [org.hippoecm.addon.workflow.AbstractWorkflowPlugin.buildMenu():215] Error setting up workflow menu
javax.jcr.RepositoryException: failed to resolve name of 0e5d2bf0-b136-4d90-ae79-8a3a1cb9ffdc
at org.apache.jackrabbit.core.HierarchyManagerImpl.getName(HierarchyManagerImpl.java:471)
at org.apache.jackrabbit.core.HierarchyManagerImpl.getName(HierarchyManagerImpl.java:431)
at org.apache.jackrabbit.core.CachingHierarchyManager.getName(CachingHierarchyManager.java:247)
at org.hippoecm.repository.jackrabbit.HippoHierarchyManager.getName(HippoHierarchyManager.java:68)
at org.apache.jackrabbit.core.NodeImpl.getName(NodeImpl.java:1938)
at org.hippoecm.repository.decorating.ItemDecorator.getName(ItemDecorator.java:96)
at org.hippoecm.repository.translation.impl.TranslationWorkflowImpl.hints(TranslationWorkflowImpl.java:228)
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:597)
at org.hippoecm.repository.impl.WorkflowManagerImpl$WorkflowInvocationHandler.invoke(WorkflowManagerImpl.java:495)
at $Proxy4.hints(Unknown Source)
at org.hippoecm.repository.impl.WorkflowDescriptorImpl.<init>(WorkflowDescriptorImpl.java:92)
at org.hippoecm.repository.impl.WorkflowDescriptorImpl.<init>(WorkflowDescriptorImpl.java:56)
at org.hippoecm.repository.impl.WorkflowManagerImpl.getWorkflowDescriptor(WorkflowManagerImpl.java:265)
at org.hippoecm.repository.decorating.checked.WorkflowManagerDecorator.getWorkflowDescriptor(WorkflowManagerDecorator.java:52)
at org.hippoecm.addon.workflow.AbstractWorkflowPlugin.buildMenu(AbstractWorkflowPlugin.java:144)
at org.hippoecm.addon.workflow.WorkflowsPlugin.onBeforeRender(WorkflowsPlugin.java:120)
at org.apache.wicket.Component.internalBeforeRender(Component.java:1071)
at org.apache.wicket.Component.beforeRender(Component.java:1105)
at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1753)
at org.apache.wicket.Component.onBeforeRender(Component.java:3946)
at org.hippoecm.frontend.service.render.AbstractRenderService.onBeforeRender(AbstractRenderService.java:474)
at org.apache.wicket.Component.internalBeforeRender(Component.java:1071)
at org.apache.wicket.Component.beforeRender(Component.java:1105)
at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1753)
at org.apache.wicket.Component.onBeforeRender(Component.java:3946)
at org.hippoecm.frontend.service.render.AbstractRenderService.onBeforeRender(AbstractRenderService.java:474)
at org.apache.wicket.Component.internalBeforeRender(Component.java:1071)
at org.apache.wicket.Component.beforeRender(Component.java:1105)
at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1753)
at org.apache.wicket.Component.onBeforeRender(Component.java:3946)
at org.apache.wicket.Component.internalBeforeRender(Component.java:1071)
at org.apache.wicket.Component.beforeRender(Component.java:1105)
at org.apache.wicket.Component.prepareForRender(Component.java:2292)
at org.apache.wicket.Component.prepareForRender(Component.java:2329)
at org.apache.wicket.ajax.AjaxRequestTarget.respondComponent(AjaxRequestTarget.java:830)
at org.apache.wicket.ajax.AjaxRequestTarget.respondComponents(AjaxRequestTarget.java:682)
at org.apache.wicket.ajax.AjaxRequestTarget.respond(AjaxRequestTarget.java:592)
at org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequestCycleProcessor.java:105)
at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1258)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1329)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1436)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:545)
at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:484)
at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:317)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
at org.hippoecm.frontend.plugins.login.ConcurrentLoginFilter.doFilter(ConcurrentLoginFilter.java:54)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:387)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:417)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:534)
at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:879)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:747)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:520)