--- a/src/pyams_content/component/illustration/zmi/paragraph.py	Wed Feb 07 14:17:37 2018 +0100
+++ b/src/pyams_content/component/illustration/zmi/paragraph.py	Wed Feb 07 14:43:55 2018 +0100
@@ -162,6 +162,7 @@
                     'visible': self.context.visible
                 }
             })
+        updated = changes.get(IIllustrationParagraph, ())
         if 'data' in updated:
             # we have to commit transaction to be able to handle blobs...
             ITransactionManager(self.context).get().commit()