The bug:

As mobs drop items when die for Powder Snow (zombies drop rotten flesh, chicken drop feathers, etc.) I tried to make a Blaze farm, but blazes didn't drop anything.

What I expected:

Blazes would drop Blaze rods like other mobs dropping items when die on Powder Snow.

What happened:

Blazes didn't drop anything.

My comment:

That is inconsistent with another mobs behavior, where they drop items when die on Powder Snow.