Downgrade of libpamac and pamac-cli resolves incorrect language issue
$ pamac update
Preparing...
==== AUTHENTICATING FOR org.manjaro.pamac.commit ====
Authentication is required to install, update, or remove packages
Authenticating as: nik gnomic (nik)
Password:
==== AUTHENTICATION COMPLETE ====
Synchronizing package databases...
Warning: libpamac: ignoring package upgrade (11.7.0-2 => 11.7.2-1)
Warning: pamac-cli: ignoring package upgrade (11.7.1-1 => 11.7.3-1)
Nothing to do.
Transaction successfully finished.