XRGrabInteractable.interactorsSelecting.Count not returning to 1 after releasing the first Pinch Grab Hand after using both hands to Pinch Grab with XR Spatial Pointer Interactors

How to reproduce:
1. Open the attached “IN-141608.zip” Project
2. Build and Run on VisionOS
3. In the Player, Pinch and Grab the Cube GameObject with one hand (Hand A)
4. Pinch and Grab the Cube GameObject with the other hand (Hand B)
5. Let go of the Cube GameObject with Hand A
6. Observe the “Grab Count” text number in the Player

Actual result: Grab Count is set to 2 and the Cube GameObject moves to a further position
Expected result: Grab Count is set to 1 and the Cube GameObject stays in the position where it was grabbed

Reproducible with: 2.4.3 (6000.0.74f1), 3.1.5 (6000.3.15f1, 6000.4.6f1, 6000.5.0b7, 6000.6.0a4)

Testing Environment: Apple Vision Pro 26.4, macOS 26.4.1 (M3 Pro)