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:
8d818032 PR-723: Add Furnace#getRecipesUsed
d7b5a313 PR-726: Add Particle dataTypes to javadocs
72fe8b71 PR-724: Add PDC to World
CraftBukkit Changes:
c0326c28 PR-1009: Add Furnace#getRecipesUsed
cc5ddd79 PR-1010: Add PDC to World
6a54e5d3 PR-1012: Always save as skull owner and not as internal data
Spigot Changes:
699290cd Rebuild patches
Previously the upstream FurnaceStartSmeltEvent would default to the
recipes cooking time, ignoring any modifications from the furnace speed
multiplier.
While this works correctly for upstream, paper introduces the speed
multiplier API, which allows a different cook time from the one provided
by the recipe.
This commit now passes the modified cooktime to the furnace start smelt
event explicitly, instead of allowing the event to default to the
recipes cooking time, thus ensuring that the speed modifier is
respected.
Resolves: #6376