Problem with scoped_session by sqlalchemy

[Khachatur86]

I have an application flask-admin. There is an endpoint that accepts the id of the object and the name of the field to be modified by post request. The session_maker from sqlalchemy version 1.3.28 is used to create the scoped_session.
The problem occurred when upgrading to python version 3.11.
Problem description:

1. An object is created and flush it to the database
2. A post-request is sent to the endpoint to change the object field.
3. Check if the object's field has changed
   At point 3, a DetachedInstanceError (sqlalchemy) occurs.
   By analyzing it was found out that the error is on the side of flask-admin - it removes the object from the session before the time.
   Please consider fixing this error. In python 3.11 the same test worked perfectly.

[samuelhwilliams]

It would be very helpful if could you provide a code snippet that reproduces the error on python 3.11, and that works on an earlier python version.