Regression: Can't create text document, and can't save a news document as author

To reproduce:

• Log in as author
• Go to documents
• In the News/2011 folder, add a document of type newsdocument
• Enter a title
• Click "Save & Close"
  Expected result: The document should be saved
  Acutal result: A message appears: "An error occurred, please retry."

OR:

• Log in as author
• Go to documents
• In the Common folder, add a document of type textdocument
  Expected result: A document should be created an opened in edit mode
  Actual result: The new document dialog remains. A message appears: "An error occurred, please retry."

This is in the logs:
26.11.2012 11:06:16 ERROR [org.hippoecm.frontend.model.JcrSessionModel.flush():74] Failed to save session before logging out
javax.jcr.AccessDeniedException: /content/documents/project78/news/2011/author-newsssss/author-newsssss/project78:body/hippostd:content: not allowed to add or modify item
at org.apache.jackrabbit.core.ItemSaveOperation.validateTransientItems(ItemSaveOperation.java:473)
at org.apache.jackrabbit.core.ItemSaveOperation.perform(ItemSaveOperation.java:216)
at org.apache.jackrabbit.core.session.SessionState.perform(SessionState.java:200)
at org.apache.jackrabbit.core.ItemImpl.perform(ItemImpl.java:91)
at org.apache.jackrabbit.core.ItemImpl.save(ItemImpl.java:329)
at org.apache.jackrabbit.core.session.SessionSaveOperation.perform(SessionSaveOperation.java:42)
at org.apache.jackrabbit.core.session.SessionState.perform(SessionState.java:200)
at org.apache.jackrabbit.core.SessionImpl.perform(SessionImpl.java:359)
at org.apache.jackrabbit.core.SessionImpl.save(SessionImpl.java:762)
at org.hippoecm.repository.decorating.SessionDecorator.save(SessionDecorator.java:202)
at org.hippoecm.repository.impl.SessionDecorator.save(SessionDecorator.java:177)
at org.hippoecm.frontend.model.JcrSessionModel.flush(JcrSessionModel.java:72)
at org.hippoecm.frontend.model.JcrSessionModel.detach(JcrSessionModel.java:103)
at org.hippoecm.frontend.session.PluginUserSession.logout(PluginUserSession.java:281)
at org.hippoecm.frontend.plugins.cms.root.LogoutLink.logout(LogoutLink.java:75)
at org.hippoecm.frontend.plugins.cms.root.LogoutLink$1.onClick(LogoutLink.java:57)
at org.apache.wicket.ajax.markup.html.AjaxLink$1.onEvent(AjaxLink.java:68)
at org.apache.wicket.ajax.AjaxEventBehavior.respond(AjaxEventBehavior.java:177)
at org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.onRequest(AbstractDefaultAjaxBehavior.java:312)
at org.apache.wicket.request.target.component.listener.BehaviorRequestTarget.processEvents(BehaviorRequestTarget.java:157)
at org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:92)
at org.hippoecm.frontend.PluginRequestCycleProcessor.processEvents(PluginRequestCycleProcessor.java:36)
at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1279)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1358)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1465)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:545)
at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:486)
at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:319)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.hippoecm.frontend.plugins.login.ConcurrentLoginFilter.doFilter(ConcurrentLoginFilter.java:54)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:615)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)