Source: s-nail Followup-For: Bug #1099716 It started as trying to remove dependencies on usr-is-merged or usrmerge packages, so that they can be removed from trixie, because /usr-merge is finished in trixie.
base-files provides usr-is-merged so it was caught as a dependency for the packages I checked. And for those packages I checked if base-files dependency is still needed (for backports as a fallback, which is a little bit of an antipattern, but is sometimes used), and if not then it can be removed as a dependency too. And if base-files is removed as a dependency from all packages, then it's more likely the Provides: usr-is-merged can be dropped from base-files in the debian release after trixie. I can see why it could be seen as QA cleanup on packages, and I agree with that assessment. I'm not aware of any immediate issue resulting from keeping the base-files dependency.