Have a list view (new RelationalModel inside a WOWL list view) that has a legacy many2many tags field in its arch. Try to add or remove some records from that many2many. Before this commit, there was a crash, because the legacy field wrapper doesn't use the model the right way for that case. After this commit, there is no crash. closes odoo/odoo#99431 Signed-off-by: Georis François (fge) <fge@odoo.com>