PreferenceConfiguratorItem: bt5_obj maybe not existe

product/ERP5Configurator/Document/PreferenceConfiguratorItem.py

@@ -109,6 +109,7 @@ class PreferenceConfiguratorItem(ConfiguratorItemMixin, XMLObject):
     preference_dict['preferred_section'] = organisation_path
     preference.edit(**preference_dict)
     bt5_obj = business_configuration.getSpecialiseValue()
+    if bt5_obj:
       current_template_preference_list = list(bt5_obj.getTemplatePreferenceList())
       if preference.getId() not in current_template_preference_list:
         current_template_preference_list.append(preference.getId())

product/ERP5Configurator/Document/SystemPreferenceConfiguratorItem.py

@@ -104,6 +104,7 @@ class SystemPreferenceConfiguratorItem(ConfiguratorItemMixin, XMLObject):
     preference.edit(**preference_dict)
     business_configuration = self.getBusinessConfigurationValue()
     bt5_obj = business_configuration.getSpecialiseValue()
+    if bt5_obj:
       current_template_preference_list = list(bt5_obj.getTemplatePreferenceList())
       if preference.getId() not in current_template_preference_list:
         current_template_preference_list.append(preference.getId())