Update proto.copy()

Author: luarocks

example.lua

@@ -101,4 +101,4 @@ for k, v, t in proto.slots(cat1) do
   print(k, v, t)
 end
 
-print(proto)
+print(proto:copy())

init.lua

@@ -26,7 +26,10 @@ function proto:copy()
   for key, value in proto.slots(self) do
     t[key] = value
   end
-  proto.set_name(t, tostring(self))
+  local mt = getmetatable(self)
+  if mt then
+    setmetatable(t, { __tostring = mt.__tostring })
+  end
   return t
 end
 

proto-0.2.2-0.rockspec renamed to proto-0.2.2-1.rockspec

@@ -1,7 +1,7 @@
 -- luacheck: no global
 
 package = "proto"
-version = "0.2.2-0"
+version = "0.2.2-1"
 source = {
   url = "git+ssh://[email protected]/lua-rocks/proto.git",
 }