PaperMC/nms-patches/EntityRabbit.patch

--- a/net/minecraft/server/EntityRabbit.java
+++ b/net/minecraft/server/EntityRabbit.java
@@ -16,8 +16,14 @@
         this.setSize(0.4F, 0.5F);
         this.g = new EntityRabbit.ControllerJumpRabbit(this);
         this.moveController = new EntityRabbit.ControllerMoveRabbit(this);
+        this.initializePathFinderGoals(); // CraftBukkit - moved code
+    }
+
+    // CraftBukkit start - code from constructor
+    public void initializePathFinderGoals(){
         this.c(0.0D);
     }
+    // CraftBukkit end
 
     protected void r() {
         this.goalSelector.a(1, new PathfinderGoalFloat(this));
@@ -400,9 +406,23 @@
                     Integer integer = (Integer) iblockdata.get(BlockCarrots.AGE);
 
                     if (integer.intValue() == 0) {
+                        // CraftBukkit start
+                        if (org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(this.c, blockposition, Blocks.AIR, 0).isCancelled()) {
+                            return;
+                        }
+                        // CraftBukkit end
                         world.setTypeAndData(blockposition, Blocks.AIR.getBlockData(), 2);
                         world.setAir(blockposition, true);
                     } else {
+                        // CraftBukkit start
+                        if (org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(
+                                this.c,
+                                blockposition,
+                                block, block.toLegacyData(iblockdata.set(BlockCarrots.AGE, Integer.valueOf(integer.intValue() - 1)))
+                        ).isCancelled()) {
+                            return;
+                        }
+                        // CraftBukkit end
                         world.setTypeAndData(blockposition, iblockdata.set(BlockCarrots.AGE, Integer.valueOf(integer.intValue() - 1)), 2);
                         world.triggerEffect(2001, blockposition, Block.getCombinedId(iblockdata));
                     }