The puzzle `1671-ff8788b3` from #1671 has to be resolved: https://github.com/php-coder/mystamps/blob/eb35a580c73af9a8d1f51b1b01d3077317110e97/src/main/java/ru/mystamps/web/feature/series/HtmxSeriesController.java#L130-L130 Tech debt for: eb35a580c73af9a8d1f51b1b01d3077317110e97 (#1671)
