SPIGOT-4392: Stem updates even if BlockGrowEvent cancelled

nms-patches/BlockStem.patch

@@ -9,7 +9,7 @@
  public class BlockStem extends BlockPlant implements IBlockFragilePlantElement {
  
      public static final BlockStateInteger AGE = BlockProperties.W;
-@@ -33,14 +35,14 @@
+@@ -33,14 +35,18 @@
  
                  if (i < 7) {
                      iblockdata = (IBlockData) iblockdata.set(BlockStem.AGE, Integer.valueOf(i + 1));
@@ -22,11 +22,15 @@
  
                      if (world.getType(blockposition1).isAir() && (block == Blocks.FARMLAND || block == Blocks.DIRT || block == Blocks.COARSE_DIRT || block == Blocks.PODZOL || block == Blocks.GRASS_BLOCK)) {
 -                        world.setTypeUpdate(blockposition1, this.blockFruit.getBlockData());
-+                        CraftEventFactory.handleBlockGrowEvent(world, blockposition1, this.blockFruit.getBlockData()); // CraftBukkit
++                        // CraftBukkit start
++                        if (!CraftEventFactory.handleBlockGrowEvent(world, blockposition1, this.blockFruit.getBlockData())) {
++                            return;
++                        }
++                        // CraftBukkit end
                          world.setTypeUpdate(blockposition, (IBlockData) this.blockFruit.e().getBlockData().set(BlockFacingHorizontal.FACING, enumdirection));
                      }
                  }
-@@ -94,7 +96,7 @@
+@@ -94,7 +100,7 @@
          int i = Math.min(7, ((Integer) iblockdata.get(BlockStem.AGE)).intValue() + MathHelper.nextInt(world.random, 2, 5));
          IBlockData iblockdata1 = (IBlockData) iblockdata.set(BlockStem.AGE, Integer.valueOf(i));