Sqlalchemy orm duplicate

product_obj = products.all()[0]

db.session.expunge(product_obj)  # expunge the object from session
make_transient(product_obj)  # http://docs.sqlalchemy.org/en/rel_1_1/orm/session_api.html#sqlalchemy.orm.session.make_transient

product_obj.product_uid = 'something'
db.session.add(product_obj)

Source: stackoverflow.com

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