How to reproduce:
1. Open the attached “Colliders.zip” project
2. Open “SampleScene” Scene (Assets > Scenes)
3. In the Hierarchy window, select “Circle” GameObject
4. In the Hierarchy window, press the “Edit Collider” button
5. Hover the cursor on a collider point, hold the command (ctrl) button, and press left click
6. Observe the result
Expected result: Point doesn’t get deleted
Actual result: Point gets deleted
Reproducible with: 2021.3.29f1, 2022.3.6f1, 2023.1.7f1, 2023.2.0b3
Reproduced on: macOS 13.4.1 (Intel)
Note: also reproducible with Polygon Collider 2D