SPIGOT-1605: Fix EntityChangeBlockEvent.setCancelled(Z)V

nms-patches/EntityFallingBlock.patch

@@ -18,11 +18,13 @@
                      this.world.setAir(blockposition);
                  } else if (!this.world.isClientSide) {
                      this.die();
-@@ -94,6 +96,12 @@
+@@ -93,7 +95,13 @@
+                     if (iblockdata.getBlock() != Blocks.PISTON_EXTENSION) {
                          this.die();
                          if (!this.f) {
-                             if (this.world.a(block, blockposition, true, EnumDirection.UP, (Entity) null, (ItemStack) null) && !BlockFalling.i(this.world.getType(blockposition.down())) && this.world.setTypeAndData(blockposition, this.block, 3)) {
-+                                // CraftBukkit start
+-                            if (this.world.a(block, blockposition, true, EnumDirection.UP, (Entity) null, (ItemStack) null) && !BlockFalling.i(this.world.getType(blockposition.down())) && this.world.setTypeAndData(blockposition, this.block, 3)) {
++                            // CraftBukkit start
++                            if (this.world.a(block, blockposition, true, EnumDirection.UP, (Entity) null, (ItemStack) null) && !BlockFalling.i(this.world.getType(blockposition.down()))) {
 +                                if (CraftEventFactory.callEntityChangeBlockEvent(this, blockposition.getX(), blockposition.getY(), blockposition.getZ(), this.block.getBlock(), this.block.getBlock().toLegacyData(this.block)).isCancelled()) {
 +                                    return;
 +                                }