RemovePathPostfixes does not work as expected for directories

[asahilina]

Describe the bug
When RemovePathPostfixes is used for a directory name, the postfix is stripped from the directory's own entry in the resulting RPM, but not any files contained within:

RemovePathPostfixes: .suffix
%install
mkdir -p %{buildroot}/dir.suffix
touch %{buildroot}/foo.suffix
touch %{buildroot}/dir.suffix/bar

%files
/foo.suffix
/dir.suffix

Results in these RPM contents:

/dir
/dir.suffix/bar
/foo

Expected behavior
If a directory's postfix is stripped, it should also be stripped when packaging the files within.

Environment

• OS / Distribution: Fedora 42
• Version rpm-4.20.1