Reproduction steps:
1. Create a new project
2. Open the Package Manager (Window > Package Manager)
3. Install the Splines package from the Unity Registry
4. Create a new empty GameObject and select it in the Hierarchy window
5. Add a “Spline” Component by pressing on the “Add Component” button in the Inspector window
6. Enable the Spline Edit Mode from the Scene Tools Overlay in the Scene View
7. Observe the Console

Expected result: No errors are present
Actual result: Multiple OverflowExceptions and “GUI Error: You are pushing more GUIClips than you are popping. Make sure they are balanced.” errors are logged

Reproducible with: 2.4.0 (2021.3.31f1, 2022.3.11f1, 2023.1.17f1, 2023.2.0b13, 2023.3.0a10)

Reproducible on: Windows 10 Pro (22H2)
Not reproducible on: No other environment tested