ESPhome "add new device" getting stuck at initializing popup when duplicate secrets are present

[majuss]

The problem

Details in this thread: https://community.home-assistant.io/t/esphome-add-new-device-stuck-at-initializing-popup/368945/1

When a duplicate key is present in the secrets file, ESPhome is getting stuck with the initializing spinning circle. Even uninstalling and reinstalling isn't helping. The file is geting populated with duplicates automatically, for some unknown reason.

There should be a popup "secrets file contains invalid syntax please check". Instead it's getting stuck in an endless loop.

Which version of ESPHome has the issue?

Every version since ~2021

What type of installation are you using?

Home Assistant Add-on

Which version of Home Assistant has the issue?

2024.5

What platform are you using?

ESP8266

Board

Component causing the issue

Web Frontend

Example YAML snippet

No response

Anything in the logs that might be useful for us?

No response

Additional information

No response