app/models/city.rb in geopolitical-2.0.0 vs app/models/city.rb in geopolitical-3.0.0

@@ -39,10 +39,10 @@
   end
 
   def set_defaults
     self.nation ||= region.try(:nation)
     return unless City.where(slug: slug).first
-    self.slug += "-#{region.abbr}"
+    self.slug += "-#{region.abbr || region.slug}"
     return unless City.where(slug: slug).first
     raise "Two cities with the same name in #{region}: '#{slug}'"
   end
 
   def phone