Unable to reconfigure Reolink C1 Pro after moving from Wi-Fi to Ethernet (MAC address mismatch)

### The problem

Loosely similar to the request in #174215, though my case involves only one device.

I have a Reolink C1 Pro that I switched from Wi-Fi to Ethernet; attempts to reconfigure the device fail with the following message:

> The MAC address of the device does not match the previous MAC address

The two interfaces do have differing MAC addresses. However, the serial number is the same, so in my particular case I'd expect this to work. Configuring a new device with the previous entry intact causes a number of entities to be deduplicated.

Patching `$.data.entries[].unique_id` in `core.config_entries` (replacing the MAC address of the WLAN interface with that of the Ethernet interface) does allow successful reconfiguration.

### What version of Home Assistant Core has the issue?

core-2026.8.3

### What was the last working version of Home Assistant Core?

_No response_

### What type of installation are you running?

Home Assistant Container

### Integration causing the issue

Reolink

### Link to integration documentation on our website

https://www.home-assistant.io/integrations/reolink/

### Diagnostics information

_No response_

### Example YAML snippet

```yaml

```

### Anything in the logs that might be useful for us?

```txt

```

### Additional information

I have reviewed the [Reolink config flow](https://github.com/home-assistant/core/blob/76665ef504a5004d7a651699869fca0d2d7d89b0/homeassistant/components/reolink/config_flow.py#L324-L336) and could not find any indication that this is resolved in 2026.9.2.