Since 0db956eb2505 _changed_value is used for on_change_with calls, so it can have to deal with unsaved Many2One value if it is the parent of a One2Many. (grafted from 206e247e16437dc8b2f1989cc13b7e48a1d0dfc7) --HG-- branch : 6.0
trytond ======= The server of Tryton. Tryton is business software, ideal for companies of any size, easy to use, complete and 100% Open Source. It provides modularity, scalability and security.