Yes exactly you can consider different «problems» there:
1. How to correctly package different source packages that have to share conffiles? So even purging one of them should leave the conffiles for the other installed ones. Laurent is suggesting to not do any explicit 'rm' of any conffiles in .postrm dpkg is doing the job. (if I understand well) And both fuse and fuse3 proceed the same: https://sources.debian.org/src/fuse3/3.9.0-1/debian/fuse3.postrm/ https://sources.debian.org/src/fuse/2.9.9-2/debian/fuse.postrm/ 2. How do get back such conffiles once it have been remove like this? Doing a reinstall is not enough and neither alert anything.
