View difference between Paste ID: YRNvQM98 and b1EzNu6b

 function cunpack(t,iter,prevKey)
   iter = iter or pairs(t)
-  local k,v = iter(t,cv or nil)
+  local k,v = iter(t,prevKey or nil)
   if k ~= nil then
     return v,cunpack(t,iter,k)
   end
 
 end