[zope2-tracker] [Bug 143593] Re: ConflictErrors cause "Shouldn't load state for?"

[khink]

We frequently see these errors on our (Plone 4.2.5-based) site. I'm
posting the latest one below. Please let me know if there is anything i
can do to help.

1373455510.460.208596855217 http://www.freitag.de/autoren/der-freitag/anders-ist-moeglich/view
Traceback (innermost last):
  Module ZPublisher.Publish, line 60, in publish
  Module ZPublisher.mapply, line 77, in mapply
  Module ZPublisher.Publish, line 46, in call_object
  Module Products.Five.browser.metaconfigure, line 476, in __call__
  Module Products.Five.browser.pagetemplatefile, line 125, in __call__
  Module Products.Five.browser.pagetemplatefile, line 59, in __call__
  Module zope.pagetemplate.pagetemplate, line 132, in pt_render
  Module five.pt.engine, line 93, in __call__
  Module z3c.pt.pagetemplate, line 149, in render
  Module chameleon.zpt.template, line 257, in render
  Module chameleon.template, line 172, in render
  Module 188bdcb17a4cb1826f85386acb0b467337d38fe0.py, line 795, in render
  Module 1486c9887907e699789c256205144787bc0fb6df.py, line 1184, in render_master
  Module z3c.pt.expressions, line 61, in render_content_provider
  Module plone.app.viewletmanager.manager, line 155, in render
  Module plone.app.viewletmanager.manager, line 86, in render
  Module plone.app.layout.viewlets.common, line 50, in render
  Module Products.Five.browser.pagetemplatefile, line 125, in __call__
  Module Products.Five.browser.pagetemplatefile, line 59, in __call__
  Module zope.pagetemplate.pagetemplate, line 132, in pt_render
  Module five.pt.engine, line 93, in __call__
  Module z3c.pt.pagetemplate, line 149, in render
  Module chameleon.zpt.template, line 257, in render
  Module chameleon.template, line 190, in render
  Module chameleon.template, line 172, in render
  Module 1b5d719a7cf8b150468861e3c9f8f9f13ce418ad.py, line 94, in render
  Module five.pt.expressions, line 161, in __call__
  Module freitag.util.layout.viewlets.workflow, line 21, in display
  Module freitag.util.layout.viewlets.workflow, line 12, in transitions
  Module Products.CMFPlone.WorkflowTool, line 88, in getTransitionsFor
  Module Products.DCWorkflow.DCWorkflow, line 133, in _getWorkflowStateOf
  Module Products.CMFCore.WorkflowTool, line 331, in getStatusOf
  Module Products.CMFCore.WorkflowTool, line 324, in getHistoryOf
  Module ZODB.Connection, line 857, in setstate
ConnectionStateError: Shouldn't load state for 0x3defc7 when the connection is closed

 - Expression: "provider:freitag.util.layout.toolbar_local"
 - Filename:   ... /layout/skins/freitag_util_layout_layer/main_template.pt
 - Location:   (61:47)
 - Source:     ... ="structure provider:freitag.util.layout.toolbar_local" />
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 - Expression: "view/display"
 - Filename:   ... -1.14-py2.7.egg/freitag/util/layout/viewlets/workflow.pt
 - Location:   (2:20)
 - Source:     tal:condition="view/display"
                              ^^^^^^^^^^^^
 - Arguments:  repeat: {...} (0)
               template: <ViewPageTemplateFile - at 0x7f9ad2a6fc10>
               views: <ViewMapper - at 0x7f9abae70f90>
               modules: <instance - at 0x1f6edd0>
               args: <tuple - at 0x7f9b0f764050>
               here: <ImplicitAcquisitionWrapper anders-ist-moeglich at 0x7f9ad3afb500>
               user: <ImplicitAcquisitionWrapper - at 0x7f9abfb11e10>
               nothing: <NoneType - at 0x88e2a0>
               container: <ImplicitAcquisitionWrapper anders-ist-moeglich at 0x7f9ad3afb500>
               request: <instance - at 0x7f9a500ecc20>
               wrapped_repeat: <SafeMapping - at 0x7f9af86fa418>
               traverse_subpath: <list - at 0x7f9a6dbff2d8>
               default: <object - at 0x19674c0>
               loop: {...} (0)
               context: <ImplicitAcquisitionWrapper anders-ist-moeglich at 0x7f9ad3afb500>
               view: <SimpleViewletClass from /home/service/.buildout/eggs/freitag.util.layout-1.14-py2.7.egg/freitag/util/layout/viewlets/workflow.pt freitag.workflow at 0x7f9a4bca53d0>
               translate: <function translate at 0x7f9ad4f80cf8>
               root: <ImplicitAcquisitionWrapper Zope at 0x7f9ae7a90a00>
               options: {...} (0)
               target_language: de

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https://bugs.launchpad.net/bugs/143593

Title:
  ConflictErrors cause "Shouldn't load state for?"

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