Biome tags has_structure can't be override in datapacks.

It looks like that tags that are in `data/minecraft/tags/worldgen/biome/has_structure/` can't be override with datapacks.
the exact same file located in an other data directory than `minecraft/` works find.

I have tested it with the 2 datapacks in attachment on new world with all default settings & in creative mod.
With NoMineshaftOutsideOceans, mineshaft are still in other biomes than oceans.
With NoMineshaftOutsideOceansWorking, mineshaft I've check 5 random mineshaft, all of them where in an ocean biome.