proto2 extensions broken about lua-protobuf HOT 2 CLOSED

local pb = require "pb"
local protoc = require "protoc"

assert(protoc:load [[
syntax = "proto2";
package foo;

message Extendable {
  required string     name     = 1;
  extensions 10 to max;
}


extend Extendable {
  optional uint32 rank = 300;
}

message LocalExtended {
  extend Extendable {
    optional string address = 400;
  }
}
]])

local c = assert(pb.encode("foo.Extendable", { name = "George" }))
local t = assert(pb.decode("foo.Extendable", c))
print(require "serpent".block(t))

{
  name = "George"
} --[[table: 0x7f8d5040ea30]]