Comment 11 for bug 297428

I do not understand the matter of the problem.
Both evdev.xml and base.xml (for drivers evdev and kbd respectively) are generated during the build from base.xml.in (for a moment, evdev.xml is a copy of base.xml). That is the way process works and will work in foreseable future. What exactly should I fix here?

While users can modify these files - honestly, they cannot expect them to remain in place during version upgrades (unfortunately XKB configuration scheme is not really modular). But again, this is up to distribution (.deb package) - whether to treat these files as configuration (and keep backup) or usual data file.

README.Debian is responsibility of Debian/Ubuntu people, I have no authority over it.