diff -r b1c575e3b4aa -r ad63fa80bb49 src/pyams_content/component/links/zmi/__init__.py
--- a/src/pyams_content/component/links/zmi/__init__.py	Fri Oct 05 15:13:58 2018 +0200
+++ b/src/pyams_content/component/links/zmi/__init__.py	Mon Oct 08 11:53:54 2018 +0200
@@ -12,35 +12,29 @@
 
 __docformat__ = 'restructuredtext'
 
-
-# import standard library
+from z3c.form import field
+from zope.interface import implementer
 
-# import interfaces
 from pyams_content.component.association.interfaces import IAssociationContainer
+from pyams_content.component.association.zmi import AssociationItemAJAXAddForm, AssociationItemAJAXEditForm
 from pyams_content.component.association.zmi.interfaces import IAssociationsView
-from pyams_content.component.links.interfaces import ILinkContainerTarget, IBaseLink, IInternalLink, \
-    IExternalLink, IMailtoLink
+from pyams_content.component.links import ExternalLink, InternalLink, MailtoLink
+from pyams_content.component.links.interfaces import IExternalLink, IInternalLink, ILinkContainerTarget, IMailtoLink
+from pyams_content.component.paragraph.zmi import get_json_paragraph_markers_refresh_event
+from pyams_content.component.paragraph.zmi.container import ParagraphContainerCounterBase
 from pyams_content.component.paragraph.zmi.interfaces import IParagraphContainerTable, IParagraphTitleToolbar
 from pyams_content.interfaces import MANAGE_CONTENT_PERMISSION
-from pyams_skin.interfaces.viewlet import IToolbarAddingMenu
-from pyams_skin.layer import IPyAMSLayer
-from pyams_utils.interfaces import VIEW_SYSTEM_PERMISSION
-from pyams_zmi.interfaces import IPropertiesEditForm
-
-# import packages
-from pyams_content.component.association.zmi import AssociationItemAJAXAddForm, AssociationItemAJAXEditForm
-from pyams_content.component.links import InternalLink, ExternalLink, MailtoLink
-from pyams_content.component.paragraph.zmi import get_json_paragraph_markers_refresh_event
-from pyams_content.component.paragraph.zmi.container import ParagraphContainerCounterBase
 from pyams_content.reference.pictograms.zmi.widget import PictogramSelectFieldWidget
 from pyams_form.form import ajax_config
 from pyams_form.security import ProtectedFormObjectMixin
 from pyams_pagelet.pagelet import pagelet_config
+from pyams_skin.interfaces.viewlet import IToolbarAddingMenu
+from pyams_skin.layer import IPyAMSLayer
 from pyams_skin.viewlet.toolbar import ToolbarMenuItem
+from pyams_utils.interfaces import VIEW_SYSTEM_PERMISSION
 from pyams_viewlet.viewlet import viewlet_config
 from pyams_zmi.form import AdminDialogAddForm, AdminDialogEditForm
-from z3c.form import field
-from zope.interface import implementer
+from pyams_zmi.interfaces import IPropertiesEditForm
 
 from pyams_content import _
 
@@ -127,8 +121,7 @@
     edit_permission = None  # defined by IFormContextPermissionChecker adapter
 
     def get_ajax_output(self, changes):
-        if ('title' in changes.get(IBaseLink, ())) or \
-           ('reference' in changes.get(IInternalLink, ())):
+        if changes:
             return self.get_associations_table()
         else:
             return super(self.__class__, self).get_ajax_output(changes)
@@ -216,8 +209,7 @@
     edit_permission = None  # defined by IFormContextPermissionChecker adapter
 
     def get_ajax_output(self, changes):
-        if ('title' in changes.get(IBaseLink, ())) or \
-           ('url' in changes.get(IExternalLink, ())):
+        if changes:
             return self.get_associations_table()
         else:
             return super(self.__class__, self).get_ajax_output(changes)
@@ -304,7 +296,7 @@
     edit_permission = None  # defined by IFormContextPermissionChecker adapter
 
     def get_ajax_output(self, changes):
-        if ('title' in changes.get(IBaseLink, ())) or changes.get(IMailtoLink, ()):
+        if changes:
             return self.get_associations_table()
         else:
             return super(self.__class__, self).get_ajax_output(changes)