Tolerate existing organisations.

product/ERP5Banking/tests/TestERP5BankingMixin.py

@@ -587,12 +587,17 @@ class TestERP5BankingMixin(ERP5TypeTestCase):
           created_site_list.append(site)
 
     # Create organisation + bank account for each site category.
-    newContent = self.organisation_module.newContent
+    organisation_module = self.organisation_module
+    newContent = organisation_module.newContent
     for site in created_site_list:
       codification = site.getCodification()
+      organisation_id = 'site_%s' % (codification, )
+      try:
+        organisation_module[organisation_id]
+      except KeyError:
         organisation = newContent(
           portal_type='Organisation',
-        id='site_%s' % (codification, ),
+          id=organisation_id,
           site=site.getRelativeUrl(),
           region=site_region_from_codification_dict.get(codification),
           group='baobab',