Fire damage from hits taken as physical(Rat Cage) does not apply to Pyromantic Pact

Steps:

1. Infernalist ascendancy aquired
2. Use Rat Cage body armour (Fire damage from hits is taken as Physical)
3. Have enough physical reduction to notice any difference when reaching maximum Infernal Flame

Actual result:
When Rat Cage is equipped, any amount of physical mitigation is null, full life and energy shield is taken. (When Rat Cage is un-equipped, fire resistance mitigated the damage taken)

Expected result:
Rat Cage's stats reduce fire hit damage with physical mitigation

Notes:
With 50% fire resist, damage taken from Infernal Flame is halved (No Rat Cage)
With 70% physical damage reduction life reaches 1 when Infernal Flame reaches maximum (Rat Cage Equipped)

Also curious about response/aknowledgement time, not even thinking about fixing the actual issue