DNS Rewrites, duplicates items... maybe bug

[andylau004]

Prerequisites

• I have checked the Wiki and Discussions and found no answer

• I have searched other issues and found no duplicates

• I want to report a bug and not ask a question or ask for help

• I have set up AdGuard Home correctly and configured clients to use it. (Use the Discussions for help with installing and configuring clients.)

Platform (OS and CPU architecture)

Linux, AMD64 (aka x86_64)

Installation

GitHub releases or script from README

Setup

On one machine

AdGuard Home version

master

Action

DNS rewrites

Allows to easily configure custom DNS response for a specific domain name.

in this web ,, background code

// handleRewriteAdd is the handler for the POST /control/rewrite/add HTTP API.
func (d *DNSFilter) handleRewriteAdd(w http.ResponseWriter, r *http.Request) {

Why not use map to remove duplicates dns rewrites items.
or
before append ,,check if exist...

why not

???

Expected result

before append ,,check if exist...

Actual result

so many duplicates item.

Additional information and/or screenshots

No response

[andylau004]

Has anyone ever been encounter this problem ???