RAW: Non-magical melee damage + Fire fire damageI haven't read the whole thread, but would like to know if anyone has addressed whether GFB includes a weapon attack delivered by a spell or if it is a spell delivered by a weapon attack (not entirely different from the Paladin smite spells or maybe some ranger spells).
RAI: Non-magical melee damage + Fite damage
The rest is just people trying to justify an errata clearly ment to apply to spells that do things like crush with tentacles or slash with spectral blades, etc... applying to an attack made with a non-magical, physical object.