Rename with CobolCase outputs "CobolCase"

[gabbhack]

Checklist

• I am sure the error is coming from deser code
• I have searched in the issue tracker for similar bug reports, including closed ones

Copy and paste the output of nim -v on the command line.

Nim Compiler Version 1.6.10 [Windows: amd64]
Compiled at 2022-11-21
Copyright (c) 2006-2021 by Andreas Rumpf

active boot switches: -d:release

deser version

0.3.0

Current behavior

{"CobolCase":"Gabben"}

Expected behavior

{"FIRST-NAME":"Gabben"}

Steps to reproduce

1. Try code example

Code example

import deser, deser_json

type
  BaseObject = object of RootObj

  User = object of BaseObject
    firstName {.renamed(CobolCase).}: string

makeSerializable(User)

echo User(firstName: "Gabben").toJson()  # {"CobolCase":"Gabben"}

Logs

No response

Debug dump

No response