Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
17c35d6e SPIGOT-6637: Revert "#636: Add FurnaceStartSmeltEvent"
4b27230b SPIGOT-6623: Missing API reasons for entity freezing
e1528c85 #636: Add FurnaceStartSmeltEvent
CraftBukkit Changes:
a6292cc3 SPIGOT-6637: Revert "#874: Add FurnaceStartSmeltEvent"
f4066854 SPIGOT-6579: DragonFireBall movement with setDirection jumps around a lot
9add952b SPIGOT-6623: Missing API reasons for entity freezing
2ea359f1 #874: Add FurnaceStartSmeltEvent
be8d625e SPIGOT-5560, SPIGOT-6574, SPIGOT-6632: Remove no longer needed tile entity fix
Spigot Changes:
eac3cd96 Rebuild patches