rewritten domains are not added to ipset even if configured

### Prerequisites

- [x] I have checked the [Wiki](https://github.com/AdguardTeam/AdGuardHome/wiki) and [Discussions](https://github.com/AdguardTeam/AdGuardHome/discussions/categories/q-a) and found no answer

- [x] I have searched other issues and found no duplicates

- [x] I want to report a bug and not [ask a question or ask for help](https://github.com/AdguardTeam/AdGuardHome/discussions/categories/q-a)

- [x] I have set up AdGuard Home correctly and [configured clients to use it](https://github.com/AdguardTeam/AdGuardHome/wiki/Clients). (Use the [Discussions](https://github.com/AdguardTeam/AdGuardHome/discussions/categories/q-a) for help with installing and configuring clients.)

### Platform (OS and CPU architecture)

Custom (please mention in the description)

### Installation

Custom package (OpenWrt, HomeAssistant, etc; please mention in the description)

### Setup

On a router, DHCP is handled by the router

### AdGuard Home version

v0.107.46

### Action

1. Set a custom DNS rewrite rule in ADG like `*.example.org -> 192.0.2.3`.
2. Set a matching ipset rule in ADG like `example.org/custom_set`.
3. Resolve the domain via ADG like `drill www.example.org @192.0.0.1`

### Expected result

`ipset list custom_set | grep 192.0.2.3` shows a match. That is, the resolved IP of the rewritten domain `www.example.org` is added to `custom_set` as expected.

### Actual result

`ipset list custom_set | grep 192.0.2.3` shows nothing. That is, the resolved IP of the rewritten domain `www.example.org` is not added to `custom_set`.

### Additional information and/or screenshots

OS: OpenWrt 5.15.162 (offcial build)
Package: `adguardhome - 0.107.46-1` (in official repo)