ArgumentNullException is thrown when accessing InputAction.bindings after calling BindingSyntax.InsertPartBinding()

How to reproduce:
1. Open the attached Project "inputTest" and load Scene "SampleScene"
2. Enter Play Mode
3. Observe the Console

Expected result: No Exceptions are thrown in the Console
Actual result: The following Exception is thrown in the Console:
"ArgumentNullException: Value cannot be null.
Parameter name: actionNameOrId"

Reproducible with: 1.1.1 (2020.3.48f1), 1.5.1 (2021.3.26f1, 2022.2.21f1, 2022.3.0f1, 2023.1.0b18, 2023.2.0a16)