diff -r 12ad545bc649 -r 9395a088cd46 src/pyams_content/shared/common/zmi/summary.py
--- a/src/pyams_content/shared/common/zmi/summary.py	Mon Sep 17 17:37:46 2018 +0200
+++ b/src/pyams_content/shared/common/zmi/summary.py	Tue Sep 18 15:40:16 2018 +0200
@@ -9,39 +9,38 @@
 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
 # FOR A PARTICULAR PURPOSE.
 #
-from pyams_content.shared.common.interfaces.types import IWfTypedSharedContent
-from pyams_sequence.interfaces import ISequentialIdInfo
 
 __docformat__ = 'restructuredtext'
 
 
 # import standard library
 
+from z3c.form import field
+from z3c.form.interfaces import DISPLAY_MODE, IDataConverter
+from zope.interface import implementer, Interface
+
+from pyams_content import _
 # import interfaces
 from pyams_content.shared.common.interfaces import IWfSharedContent, IWfSharedContentRoles, IBaseSharedTool
+from pyams_content.shared.common.interfaces.types import IWfTypedSharedContent
+# import packages
+from pyams_content.shared.common.zmi.header import SharedContentHeaderContentProvider
 from pyams_form.interfaces.form import IWidgetForm, IInnerTabForm, IInnerSubForm
+from pyams_pagelet.pagelet import pagelet_config
+from pyams_security.utility import get_principal
+from pyams_sequence.interfaces import ISequentialIdInfo
 from pyams_skin.interfaces import IInnerPage
 from pyams_skin.layer import IPyAMSLayer
-from pyams_utils.interfaces import VIEW_SYSTEM_PERMISSION
-from pyams_workflow.interfaces import IWorkflowState, IWorkflow, IWorkflowPublicationInfo, IWorkflowStateHistoryItem, \
-    IWorkflowVersions
-from z3c.form.interfaces import DISPLAY_MODE, IDataConverter
-
-# import packages
-from pyams_content.shared.common.zmi.header import SharedContentHeaderContentProvider
-from pyams_pagelet.pagelet import pagelet_config
-from pyams_security.utility import get_principal
 from pyams_utils.adapter import adapter_config
 from pyams_utils.date import format_datetime
+from pyams_utils.interfaces import VIEW_SYSTEM_PERMISSION
 from pyams_utils.timezone import tztime
 from pyams_utils.traversing import get_parent
 from pyams_utils.url import absolute_url
 from pyams_viewlet.viewlet import contentprovider_config
+from pyams_workflow.interfaces import IWorkflowState, IWorkflow, IWorkflowPublicationInfo, IWorkflowStateHistoryItem, \
+    IWorkflowVersions
 from pyams_zmi.form import AdminDisplayForm, InnerAdminDisplayForm, InnerAdminAddForm
-from z3c.form import field
-from zope.interface import implementer, Interface
-
-from pyams_content import _
 
 
 @pagelet_config(name='summary.html', context=IWfSharedContent, layer=IPyAMSLayer, permission=VIEW_SYSTEM_PERMISSION)