/usr/share/myspell/dicts/fr_CA.aff is in hunspell-fr 1:3.3.0-4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/myspell/dicts/../../hunspell/fr_CA.aff
/usr/share/myspell/dicts/../../hunspell/fr_CA.aff