fix(op): invalidate new path cache on meta path update (#2322)

Author: Lanfei

internal/op/meta.go

@@ -78,6 +78,7 @@ func UpdateMeta(u *model.Meta) error {
 		return err
 	}
 	metaCache.Del(old.Path)
+	metaCache.Del(u.Path)
 	return db.UpdateMeta(u)
 }