How to reproduce:
1. Open the attached “PB_multiple_edge_issues” project
2. Open the “SampleScene”
3. In the Hierarchy, select the “test” GameObject
4. In the Tools overlay, click the tool context button, to swap into ProBuilder context
5. Select Edge Selection edit mode
6. Select one of the edges
7. Position the scene camera in a way that a visible and currently selected edges intersect
8. Click anywhere in the scene to unselect the edge, remembering its position
9. Hover mouse cursor in the area where two edges intersect
10. Click with the mouse when the visible edge is highlighted
11. Observe the scene view

Expected result: The highlighted edge is selected
Actual result: The hidden edge, behind the visible edge is selected instead

Reproducible with: 6.0.5 (6000.0.15f1, 6000.2.0a8), 6.0.7 (6000.0.57f1, 6000.2.4f1, 6000.3.0b1)
Not reproducible with: 6.0.4 (6000.0.15f1, 6000.2.0a8)

Reproducible on: macOS 15.6.1 (M1)
Not reproducible on: No other environments tested