Changelog for update-desktop-files-84.87-18.1.noarch.rpm :

* Tue Dec 06 2022 Dominique Leuenberger - Do not ever use \"%setup -n .\": rpm 4.18 tries to be cleaner and remove stuff it extraced, which would lead to \'rm -rf .\', which rm does not like. Use \"%setup -c\" instead, which creates the appropriate %{name}-%{version} directory expected.