json2.decoder2: cannot decode escaped string value

[gechandesu]

V version: V 0.4.11 3271c72, press to see full `v doctor` output

V full version	V 0.4.11 89d1aac.3271c72
OS	linux, Linux version 6.6.8-arch1-1 (linux@archlinux) (gcc (GCC) 13.2.1 20230801, GNU ld (GNU Binutils) 2.41.0) #1 SMP PREEMPT_DYNAMIC Thu, 21 Dec 2023 19:01:01 +0000
Processor	16 cpus, 64bit, little endian, 12th Gen Intel(R) Core(TM) i5-1240P
Memory	1.57GB/15.35GB
V executable	/home/ge/.vlang/v
V last modified time	2025-07-02 13:14:42
V home dir	OK, value: /home/ge/.vlang
VMODULES	OK, value: /home/ge/.vmodules
VTMP	OK, value: /tmp/v_1000
Current working dir	OK, value: /tmp
Git version	git version 2.50.0
V git status	weekly.2025.16-385-g3271c728
.git/config present	true
cc version	cc (GCC) 15.1.1 20250425
gcc version	gcc (GCC) 15.1.1 20250425
clang version	clang version 20.1.6
tcc version	tcc version 0.9.28rc 2024-07-31 HEAD@1cee0908 (x86_64 Linux)
tcc git status	thirdparty-linux-amd64 0134e9b9
emcc version	N/A
glibc version	ldd (GNU libc) 2.41

What did you do?
./v -g -o vdbg cmd/v && ./vdbg anon_struct_json2.v && anon_struct_json2

import x.json2
import x.json2.decoder2

enum Unit {
	byte
	kilobyte
	megabyte
	gigabyte
	terabyte
}

struct Disk {
	dev  string
	size struct {
		value u64
		unit  Unit
	}
}

fn main() {
	disk := Disk{
		dev:  '/dev/sda'
		size: struct {
			value: 1000000
			unit:  .byte
		}
	}
	disk_str := json2.encode[Disk](disk)
	dump(disk_str)
	disk_dec := decoder2.decode[Disk](disk_str)!
	dump(disk_dec)

	assert disk == disk_dec
}

What did you see?

[anon_struct_json2.v:29] disk_str: {"dev":"\/dev\/sda","size":{"value":1000000,"unit":0}}
V panic: result not set (
{"dev":"\/d
          ^ invalid value. Unexpected character after string_ end)
v hash: 3271c72
/tmp/v_1000/anon_struct_json2.01JZ5MDBTAFD6DF03H077FZGAN.tmp.c:5981: at _v_panic: Backtrace
/tmp/v_1000/anon_struct_json2.01JZ5MDBTAFD6DF03H077FZGAN.tmp.c:5943: by panic_result_not_set
/tmp/v_1000/anon_struct_json2.01JZ5MDBTAFD6DF03H077FZGAN.tmp.c:14398: by main__main
/tmp/v_1000/anon_struct_json2.01JZ5MDBTAFD6DF03H077FZGAN.tmp.c:14465: by main

What did you expect to see?

string decoded as '/dev/sda'

Disk{
    dev: '/dev/sda'
    size: struct {
        value: 1000000
        unit: byte
    }
}

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