NullReferenceException and additional errors are thrown when Domain Reload is disabled and Dynamic Font in UI Toolkit is used

Reproduction steps:
1. Open the attached “UITK-DynamicFontTest.zip” project
2. Open the “Test” scene
3. Enter the Play mode
4. Exit the Play mode
5. Enter the Play mode again
6. Observe the Console

Expected result: No errors are visible in the Console
Actual result: “NullReferenceException: Object reference not set to an instance of an object” and “InvalidOperationException: Begin can only be called when there is no target set. Did you forget to call End?” errors are thrown in the Console

Reproducible with: 6000.0.0b12, 6000.0.10f1
Not reproducible with: 2021.3.40f1, 2022.3.37f1, 6000.0.0b11

Reproducible on: macOS 14.5 (M2), Windows 11
Not reproducible on: no other environment tested

Note:

• The "InvalidOperationException: Begin can only be called when there is no target set. Did you forget to call End?" error gets spammed even after exiting the Play mode