1.21.1 5.0.5 Neoforge - Pyromaniac gives fire resist but appears to not heal players

friend noticed this while she was working on a modpack, wanted to submit this issue for her.

tested this just now on a fresh instance with nothing but RunicLib installed and giving myself pyromaniac + hunger (to prevent healing from saturation). unsure if this applies to non-player entities as well.

thanks for your time!