How to reproduce:
1. Open the attached project “AnimatorBug”
2. Open the “SampleScene”
3. Delete a “New Animator Controller” Animator Controller in the Assets folder
4. Create the new Animator Controller and attach it to the “GameObject” GameObject
5. Open the new Animator Controller and create an Empty State
6. Make a transition from Any State to the created State
7. Click on the Transition from Any State
8. Observe the Console

Expected result: There are no errors
Actual result: NullReferenceException errors appear

Reproduced with: 2022.1.0a6, 2022.1.9f1, 2022.2.0b1, 2023.1.0a3
Not reproduced with: 2020.3.36f1, 2021.3.6f1, 2022.1.0a5

Reproduced on: Windows 11 Pro

Note:
-Not reproduced if the Animator Controller is not assigned to an Animator Component on the GameObject