Double localisation calls happening in templates

[Far2Casual]

The problem is in the screens ; in the compendium browser for spells, in French, one key is translated "twice":

To understand that:

1. "Spell" (EN) => "Sort" (FR) The system key is translated in the PF2 FR translation module here: https://gitlab.com/pathfinder-fr/foundryvtt-pathfinder2-fr/-/blob/master/lang/fr.json?ref_type=heads#L6252

2. "Sort" (EN) => "Tri" (FR) This is translated by the "French Foundry Core Translation module" https://github.com/Fonderie-VTT/fr-core/blob/main/fr.json#L38

And ... they're both useful for different reasons. So we are trying to figure out: why is this system key localized "twice" ?

This can be replicated in the console

Following our discussion cc @stwlam