erp5_officejs_appstore_base: handle Software Publication without lines

bt5/erp5_officejs_appstore_base/SkinTemplateItem/portal_skins/erp5_officejs_appstore_ui/SoftwareProduct_getRelatedSoftwarePublicationList.py

@@ -5,9 +5,11 @@ software_publication_list = portal.portal_catalog(
   **kw
 )
 for software_publication in software_publication_list:
-  software_publication_line = software_publication.objectValues(
+  software_publication_line_list = software_publication.objectValues(
     portal_type="Software Publication Line"
-  )[0]
+  )
+  if software_publication_line_list:
+    software_publication_line = software_publication_line_list[0]
     if context.getRelativeUrl() == software_publication_line.getResource():
       result.append(software_publication)
 return result