When you visit history of a page ([[ https://cs.wikipedia.org/wiki/Special:Random?action=history&deleted=1&uselang=en | random example ]]) and apply some filters, you will see just the filter menu and explanations of some markers. There should be some placeholder explaining why there are no results.
**Solution:**
- create a message in `languages/i18n/en.json` and documentation in `languages/i18n/qqq.json` (https://www.mediawiki.org/wiki/Localisation)
- override `IndexPager::getEmptyBody` in `HistoryPager` class to print the new message (https://www.mediawiki.org/wiki/Manual:Messages_API#Using_messages_in_PHP)
- update `HistoryPager::getStartBody` and `HistoryPager::getEndBody`, so that they produce no HTML when `HistoryPager::getNumRows` returns 0
See also {T225573}.