bug: nested group name was wrong in `Err` attribute about tint HOT 2 CLOSED

package logging

import (
	"errors"
	"log/slog"
	"os"
	"testing"
	"time"

	"github.com/lmittmann/tint"
)

func TestLogging(t *testing.T) {
	lh := tint.NewHandler(os.Stdout, &tint.Options{
		Level:      slog.LevelDebug,
		TimeFormat: time.Kitchen,
		AddSource:  true,
	})

	logger := slog.New(lh)
	slog.SetDefault(logger)

	logger = logger.WithGroup("group0").With("reqId", "xxxx-xxx-xxxx-xxxx")
	logger.WithGroup("group1").Debug("Debug msg", "foo", "bar", "x", "y")
	logger.Info("This is a info msg", "foo", 1, "bar", true)
	logger.Warn("This is a warn msg", "foo", map[string]string{"aa": "bb", "cc": "dd"}, "bar", []string{"a", "b", "c"}, "null response", nil)
	logger.Error("This is a error msg", tint.Err(errors.New("i'm an error")))
}