The bug
If you ignite the top half of a two block tall flower, it will drop.
Linked issues
is duplicated by 1
relates to 2
Comments 38
Confirmed in 15w41b. I start to wonder if Mojang even cares to fix this--it should be an easy fix, just make fire, when it burns a block and that block is a minecraft:double_plant with its block data having half=upper, also destroy the block below it if that block is a minecraft:double_plant.
Confirmed