BlockStateExtensions and BlockExtensions "canSustainPlant" do not work

[kleiders3010]

Tested with:

public class TestBlock extends Block implements BlockExtensions {
	public static BlockBehaviour.Properties PROPERTIES = FabricBlockSettings.of(Material.GRASS).sound(SoundType.GRAVEL).strength(1f, 10f);

	public TestBlock() {
		super(PROPERTIES);
	}

	@Override
	public boolean canSustainPlant(BlockState state, BlockGetter world, BlockPos pos, Direction facing, IPlantable plantable) {
		return true;
	}
}

And also tried the same with BlockStateExtensions, neither worked; Doesn't seem to be anything at all.

[AlphaMode]

This probably needs to be moved to a separate interface as leaving it in block would probably compromise mod compatibility