справочник команд DNF (DNF Command Reference)
Политика замены конфигурационных файлов (Configuration files replacement policy)
The updated packages could replace the old modified configuration
files with the new ones or keep the older files. Neither of the
files are actually replaced. To the conflicting ones RPM gives
additional suffix to the origin name. Which file should maintain
the true name after transaction is not controlled by package
manager but is specified by each package itself, following
packaging guideline.
