Shortcuts: A user gets "Profile already exists" validation during the default profile rename workflow

Steps to reproduce:

1. Create a project
2. Go to the menu "Unity" -> "Shortcuts"
3. Verify, that the "Shortcuts" window opens
4. In the profile drop-down menu select "Create New Profile"
5. Leave the default proposed name and save it
6. In the profile drop-down menu select "Rename Profile"
7. Observe the window

Expected result: Latest profile name should be displayed. No validation messages should be.

Actual Result:  A user gets a validation message that such profile name already exists. Added screenshot in the "Attachments" section. 

 

Reproducible with: 2023.2.0a11, 2023.2.0b2, 2023.1.6f1, 2022.3.6f1, 2021.3.29f1

Not reproducible with: 2023.2.0a10