How to reproduce:
1. Open the attached “IN-104037” project
2. Open the "Assets/Scenes/SampleScene.unity"
3. In the Scene view, move the Scene Camera to be on the inside of the “Cube”
4. In the Tools overlay, click the tool context button, to swap into ProBuilder context
5. In the Tools overlay, select Edge Selection edit mode
6. Hover over one of the “Cube” edges, notice the edge is highlighted
7. Click on the edge
8. Observe the Scene view

Expected result: Edge that was highlighted is selected
Actual result: Another edge on the same object is selected

Reproducible with: 6.0.5 (6000.0.51f1, 6000.1.7f1, 6000.2.0b5)
Not reproducible with: 5.2.4 (2022.3.63f1), 6.0.4 (6000.0.0f1, 6000.1.0b12)

Reproducible on: Windows 11
Not reproducible on: No other environments tested

Note: The incorrect edge is selected, in average, every second/third selection