Keyboard Manager - Duplicates and Settings

### Microsoft PowerToys version

0.100

### Installation method

GitHub

### Area(s) with issue?

Keyboard Manager

### Steps to reproduce

Create a new remapping and save it.

A) When you edit the remapping, it gets duplicated when saved.
B) I unchecked the setting "Allow chords". Eventually it gets checked.
B.1) When this settings is checked, i.e. "Allow chords", the keys in the keys to be remapped are disabled.
Example: (I use this remap specifically for msword but noticed it happens in other apps as well)

- Trigger: _Key or Shortcut_ **Ctrl (Left) + End**
- Action: _Remap to key or shortcut_ **End**
- Behavior: the keys **Ctrl** and **End** don't work. Now I can't copy (ctrl+c) or paste (ctrl+v), etc. because the **Ctrl** key is disabled somehow.

### ✔️ Expected Behavior

1) Keeps settings
2) When editing a shortcut it doesn't get duplicated

### ❌ Actual Behavior

Entries get duplicated when edited and and the "Allow chord" setting won't persist when unchecked.

### Upload Bug Report ZIP-file

[PowerToysReport_2026-06-19-10-59-36.zip](https://github.com/user-attachments/files/29144818/PowerToysReport_2026-06-19-10-59-36.zip)

### Additional Information

_No response_

### Other Software

_No response_

Start by reproducing the Keyboard Manager remapping workflow described in the issue on PowerToys 0.100, then inspect the attached bug report for relevant diagnostics. Done means edited remappings are not duplicated, the “Allow chords” setting persists when unchecked, and remapped keys such as Ctrl and End remain usable.

Written by the indexing model from the issue text.