Chained workflow calls cannot log events

Only occurred once:

14.07.2010 10:46:15 ERROR [org.hippoecm.repository.impl.DocumentManagerImpl.<init>():71] document manager configuration failed: hippo:configuration/hippo:documents
14.07.2010 10:46:16 WARN [org.hippoecm.repository.standardworkflow.EventLoggerImpl.addLogNode():197] Event logging failed: /hippo:log: not allowed to modify item
javax.jcr.AccessDeniedException: /hippo:log: not allowed to modify item
at org.apache.jackrabbit.core.ItemImpl.validateTransientItems(ItemImpl.java:404)
at org.apache.jackrabbit.core.ItemImpl.save(ItemImpl.java:1058)
at org.hippoecm.repository.decorating.ItemDecorator.save(ItemDecorator.java:144)
at org.hippoecm.repository.impl.NodeDecorator.save(NodeDecorator.java:84)
at org.hippoecm.repository.standardworkflow.EventLoggerImpl.addLogNode(EventLoggerImpl.java:195)
at org.hippoecm.repository.standardworkflow.EventLoggerImpl.logWorkflowStep(EventLoggerImpl.java:92)
at org.hippoecm.repository.impl.WorkflowManagerImpl$WorkflowInvocationHandler.invoke(WorkflowManagerImpl.java:510)
at $Proxy6.copy(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.hippoecm.repository.impl.WorkflowManagerImpl$WorkflowInvocationImpl.invoke(WorkflowManagerImpl.java:714)
at org.hippoecm.repository.impl.WorkflowManagerImpl$WorkflowContextImpl$2.submit(WorkflowManagerImpl.java:892)
at org.hippoecm.repository.impl.WorkflowManagerImpl$WorkflowContextImpl$3.invoke(WorkflowManagerImpl.java:911)
at org.hippoecm.repository.impl.WorkflowManagerImpl$WorkflowChainHandler.invoke(WorkflowManagerImpl.java:591)
at $Proxy6.copy(Unknown Source)
at org.hippoecm.repository.reviewedactions.FullReviewedActionsWorkflowImpl.copy(FullReviewedActionsWorkflowImpl.java:116)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.hippoecm.repository.impl.WorkflowManagerImpl$WorkflowInvocationHandler.invoke(WorkflowManagerImpl.java:495)
at $Proxy2.copy(Unknown Source)
at org.hippoecm.frontend.plugins.reviewedactions.FullReviewedActionsWorkflowPlugin$9.execute(FullReviewedActionsWorkflowPlugin.java:373)
at org.hippoecm.addon.workflow.CompatibilityWorkflowPlugin$WorkflowAction.execute(CompatibilityWorkflowPlugin.java:160)
at org.hippoecm.addon.workflow.CompatibilityWorkflowPlugin$WorkflowAction$WorkflowDialog.execute(CompatibilityWorkflowPlugin.java:223)
at org.hippoecm.addon.workflow.CompatibilityWorkflowPlugin$WorkflowAction$WorkflowDialog.onOk(CompatibilityWorkflowPlugin.java:204)
at org.hippoecm.frontend.dialog.AbstractDialog.handleSubmit(AbstractDialog.java:606)
at org.hippoecm.frontend.dialog.AbstractDialog$3.onSubmit(AbstractDialog.java:456)
at org.hippoecm.frontend.dialog.AbstractDialog$ButtonWrapper$1.onSubmit(AbstractDialog.java:277)
at org.apache.wicket.ajax.markup.html.form.AjaxButton$1.onSubmit(AjaxButton.java:102)
at org.apache.wicket.ajax.form.AjaxFormSubmitBehavior.onEvent(AjaxFormSubmitBehavior.java:143)
at org.apache.wicket.ajax.AjaxEventBehavior.respond(AjaxEventBehavior.java:177)
at org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.onRequest(AbstractDefaultAjaxBehavior.java:286)
at org.apache.wicket.request.target.component.listener.BehaviorRequestTarget.processEvents(BehaviorRequestTarget.java:119)
at org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:92)
at org.hippoecm.frontend.PluginRequestCycleProcessor.processEvents(PluginRequestCycleProcessor.java:95)
at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1250)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1329)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1428)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:545)
at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:479)
at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:312)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1115)
at org.hippoecm.frontend.plugins.login.ConcurrentLoginFilter.doFilter(ConcurrentLoginFilter.java:54)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1115)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:361)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:417)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:324)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:534)
at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:879)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:741)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:213)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:403)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:522)