koanf reports empty string key after a file gets modified #305

package main

import (
	"fmt"
	"log"
	"time"

	"github.com/knadh/koanf/parsers/yaml"
	"github.com/knadh/koanf/providers/file"
	"github.com/knadh/koanf/v2"
)

func main() {
	k := koanf.New(".")
	provider := file.Provider("config.yaml")
	err := k.Load(provider, yaml.Parser())
	if err != nil {
		panic(err)
	}

	provider.Watch(func(event interface{}, err error) {
		if err != nil {
			log.Printf("watch error: %v", err)
			return
		}

		// Throw away the old config and load a fresh copy.
		log.Println("config changed. Reloading ...")
		k = koanf.New(".")
		err = k.Load(provider, yaml.Parser())
		if err != nil {
			log.Printf("watch error: %v", err)
			return
		}
	})

	go func() {
		for {
			fmt.Println(k.String("rpc"))
			time.Sleep(time.Second)
		}
	}()

	<-make(chan bool)
}