x.json2 fails to decode a map with number keys about v

[spytheman]

Using json also works:

module main

import json

const data = '
{
  "comments": {
    "26788945": {
      "id": "26788945",
      "message": "some comment 1"
    },
    "26788946": {
      "id": "26788946",
      "message": "some comment 2"
    },
    "26788947": {
      "id": "26788947",
      "message": "some comment 3"
    }
  }
}
'

struct Comment {
	id      string
	message string
}

struct Comments {
mut:
	comments map[string]Comment
}

fn main() {
	root := json.decode(Comments, data)!
	println(root)
}

[spytheman]

Note that a more manual version of the program works:

module main

import x.json2

const data = '
{
  "comments": {
    "26788945": {
      "id": "26788945",
      "message": "some comment 1"
    },
    "26788946": {
      "id": "26788946",
      "message": "some comment 2"
    },
    "26788947": {
      "id": "26788947",
      "message": "some comment 3"
    }
  }
}
'

struct Comment {
	id      string
	message string
}

struct Comments {
mut:
	comments map[string]Comment
}

fn main() {
	mut root := Comments{}
	for k, v in json2.raw_decode(data)!.as_map()['comments']!.as_map() {
		comment := json2.decode[Comment](v.str())!
		root.comments[k] = comment
	}
	println(root)
}

producing:

Comments{
    comments: {'26788945': Comment{
        id: '26788945'
        message: 'some comment 1'
    }, '26788946': Comment{
        id: '26788946'
        message: 'some comment 2'
    }, '26788947': Comment{
        id: '26788947'
        message: 'some comment 3'
    }}
}

I expected that root := json2.decode[Comments](data)! would produce the same.