SPIGOT-4221: Update surrounding blocks for cancelled break/place

By: md_5 <git@md-5.net>

paper-server/nms-patches/ItemStack.patch

@@ -85,7 +85,7 @@
          EntityHuman entityhuman = itemactioncontext.getEntity();
          BlockPosition blockposition = itemactioncontext.getClickPosition();
          ShapeDetectorBlock shapedetectorblock = new ShapeDetectorBlock(itemactioncontext.getWorld(), blockposition, false);
-@@ -106,12 +146,136 @@
+@@ -106,12 +146,142 @@
          if (entityhuman != null && !entityhuman.abilities.mayBuild && !this.b(itemactioncontext.getWorld().E(), shapedetectorblock)) {
              return EnumInteractionResult.PASS;
          } else {
@@ -156,6 +156,12 @@
 +                    for (BlockState blockstate : blocks) {
 +                        blockstate.update(true, false);
 +                    }
++
++                    // Brute force all possible updates
++                    BlockPosition placedPos = ((CraftBlock) placeEvent.getBlock()).getPosition();
++                    for (EnumDirection dir : EnumDirection.values()) {
++                        ((EntityPlayer) entityhuman).playerConnection.sendPacket(new PacketPlayOutBlockChange(world, placedPos.shift(dir)));
++                    }
 +                } else {
 +                    // Change the stack to its new contents if it hasn't been tampered with.
 +                    if (this.getCount() == oldCount) {
@@ -223,7 +229,7 @@
  
              return enuminteractionresult;
          }
-@@ -135,7 +299,7 @@
+@@ -135,7 +305,7 @@
          nbttagcompound.setString("id", minecraftkey == null ? "minecraft:air" : minecraftkey.toString());
          nbttagcompound.setByte("Count", (byte) this.count);
          if (this.tag != null) {
@@ -232,7 +238,7 @@
          }
  
          return nbttagcompound;
-@@ -213,6 +377,11 @@
+@@ -213,6 +383,11 @@
                  if (this.isDamaged(i, entityliving.getRandom(), entityliving instanceof EntityPlayer ? (EntityPlayer) entityliving : null)) {
                      entityliving.c(this);
                      Item item = this.getItem();
@@ -244,7 +250,7 @@
  
                      this.subtract(1);
                      if (entityliving instanceof EntityHuman) {
-@@ -480,6 +649,14 @@
+@@ -480,6 +655,14 @@
      }
  
      public void setRepairCost(int i) {
@@ -259,7 +265,7 @@
          this.getOrCreateTag().setInt("RepairCost", i);
      }
  
-@@ -522,6 +699,13 @@
+@@ -522,6 +705,13 @@
          nbttaglist.add((NBTBase) nbttagcompound);
      }