lib/ipaddress_2/ipv6.rb in ipaddress_2-0.12.0 vs lib/ipaddress_2/ipv6.rb in ipaddress_2-0.12.1

@@ -987,20 +987,21 @@
     #     #=> ["2001:db8:8:801::/64","2001:db8:8:802::/63","2001:db8:8:804::/64"]
     #
     def self.summarize(*args)
       # one network? no need to summarize
       return [args.first.network] if args.size == 1
+      args_size = args.size 
 
       i = 0
-      result = args.dup.sort.map{|ip| ip.network}
+      result = args.sort.map{|ip| ip.network}
       while i < result.size-1
         sum = result[i] + result[i+1]
         result[i..i+1] = sum.first if sum.size == 1
         i += 1
       end
 
       result.flatten!
-      if result.size == args.size
+      if result.size == args_size
         # nothing more to summarize
         return result
       else
         # keep on summarizing
         return self.summarize(*result)