Now, the version 0.19-alt3 doesn't include patches which implement regex matching of paths to be restored. I've made packages with them, they could be incorporated into ALT: http://gear.truecrux.org/#!/gr/imz/btrfs-progs , branch restore_pathfilter, tag 0.19-alt4.jisefbacik http://git.truecrux.org/overlays/gr/imz/frontier/p6/i586/RPMS.classic/ (This branch hasn't been merged however with the newer mainline ("vanilla") of btrfs-progs...)
в альте всегда свежая апстримная версия btrfs-progs. Все патчи через апстрим.