The puzzle `678-267e6a41` from #678 has to be resolved: https://github.com/php-coder/mystamps/blob/be9ed148c17a2bda4857aeac941338342cd77541/src/main/java/ru/mystamps/web/feature/series/sale/AddSeriesSalesForm.java#L38-L38 The puzzle was created by Slava Semushin on 01-Mar-19.