It is currently not possible to completely disable rpm own debuginfo generation code

[simo5]

Describe the bug
I have spent some time trying to create a completely custom debuginfo file for a package I maintain.

Currently it is not possible to do so. Even disabling the custom package template and the whole debug_package machinery via %global debug_package %{nil} if rpm build see a package named %{name}-debuginfo it will always interfere with the build process of that package.

Namely the code will disregard any file list provide by either the %files section or via __find_debuginfo script and will instead process to reconstruct a new file list by searching for files named *-%{name}-%version}.%{release}.debug

To Reproduce
Steps to reproduce the behavior:

1. Disable debug package creation
2. Add an explicit %{name}-debuginfo package
3. Try to include arbitrary files in it

Please link or attach the packages or spec files involved.

Expected behavior
When debug package creation is disabled the "main" debuginfo package file lists should not be tampered with.

Additional context
At the moment the only workaround I found was to create a fake subpackage and debuginfo subpackage and that allows me to include whatever content I need, but this is not a good solution.