Updated Upstream (CraftBukkit)

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

CraftBukkit Changes:
68d40318 SPIGOT-6580: Cancelling SlimeSplitEvent Causes Infinite Loop
78d93f77 SPIGOT-6576: BlockExpEvent does not show XP when breaking a furnace

patches/server/ExperienceOrbs-API-for-Reason-Source-Triggering-play.patch

@@ -292,7 +292,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 --- a/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
 +++ b/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
 @@ -0,0 +0,0 @@ public abstract class AbstractFurnaceBlockEntity extends BaseContainerBlockEntit
-         }
+         j = event.getExpToDrop();
          // CraftBukkit end
  
 -        ExperienceOrb.award(worldserver, vec3d, j);

work/CraftBukkit

@@ -1 +1 @@
-Subproject commit 9122f5a6e02e52b50ba61b8073137365d1167f30
+Subproject commit 68d403188aacb73c8c9d64c16e9d72e6514b0bac