I have a daemon that is using sqlalchemy ORM to talk to the DB. One of the 
things it does is create an instance of a model, assign some values to it, 
add it to the session and commit. But I want to 
continue using this object later (and it's relations) without going back to 
the db after the commit. Moreover, at a certain point I need to apply 
additional changes to the created obj and commit it then continue reusing 
it. Is that possible without reloading the object from DB? I am always 
running into obj not in session issues, and after commit, relationships are 
retrieved again from db which I want to avoid because in reality they might 
have been deleted via the web app but I still want the daemon to access 
them until the created obj gets into a certain state. 

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