When a searcher of a Function field compose a domain using mutually exclusive joins, the boolean operator must always be OR because only one clause is not NULL. Closes #12291
###################### Account Invoice Module ###################### The *Account Invoice Module* adds the concept of invoicing to Tryton. It allows the creation of customer and supplier invoices, and can handle the payment terms related to the invoices and show when they have been paid. .. toctree:: :maxdepth: 2 usage/index configuration design releases