reversion must come after modoboa into INSTALLED_APPS.

modoboa/core/templates/settings.py

@@ -141,7 +141,6 @@ INSTALLED_APPS = (
     # 'django.contrib.admin',
     # Uncomment the next line to enable admin documentation:
     # 'django.contrib.admindocs',
-    'reversion',
     'south',
 
     # Extra tools
@@ -168,6 +167,10 @@ MODOBOA_APPS = (
 
 INSTALLED_APPS += MODOBOA_APPS
 
+INSTALLED_APPS += (
+    'reversion'
+)
+
 AUTH_USER_MODEL = 'admin.User'
 
 #MODOBOA_CUSTOM_LOGO = os.path.join(MEDIA_URL, "custom_logo.png")