Assertion fails when creating a TextMeshPro Prefab with Asset Transformer Toolkit (Pixyz) installed

How to reproduce:

1. Open the attached “IN-144719_pixyz_and_TMP_bug” project
2. Drag the “Text (TMP)” GameObject to the Project window in order to create a Prefab
3. Observe the Console

Actual result: Error is thrown in the Console: “Assertion failed on expression: '!o->TestHideFlag(Object::kDontSaveInEditor)'“
Expected result: No errors are thrown in the Console

Reproducible with: 3.3.0 (6000.0.77f1, 6000.6.0a7)
Could not test with: 3.0.3 (6000.6.0a7), 3.2.2 (6000.6.0a7) (Deprecation errors)

Reproducible on: Windows 11
Not reproducible on: No other environments tested