Caused by 98bfa8d458
Occlusion must consider several factors:
- The `Viewport Display` > `Display As` setting of the object.
- The X-Ray mode of the scene.
- Whether only Snap to Face is being used.
- Whether Snap is set to Cage (always transparent) in edit mode.
- Whether the object is hidden.
In the case of Cage, the final geometry should be utilized for occlusion.
However, to prevent excessive and risky modifications, it was followed
the same approach as before and verified the `Display As` setting of
the object.
981dd12394