ObservableList is half-cleared when using the Clear method

Reproduction steps:
1. Open the “ObservableListClear“ project
2. Open the “Sample” scene
3. Enter Play Mode and observe the Console

Expected result: “0” is logged
Actual result: “2” is logged

Reproduced in: 2021.3.0f1, 2021.3.28f1, 2022.3.5f1, 2023.1.5f1, 2023.2.0b1

Reproduced using: macOS 13.4.1 (Intel), Windows 11

Note: Also reproduced in Player