SPIGOT-4893: Don't reset angry state of wolves without target.

Wolves will 'silently' lose their target when teleporting between
dimensions or the chunk getting reloaded. To reset the angry state in
those cases, the check got moved into the loading method.

nms-patches/EntityWolf.patch

@@ -44,7 +44,28 @@
      @Override
      public void setGoalTarget(@Nullable EntityLiving entityliving) {
          super.setGoalTarget(entityliving);
-@@ -217,7 +238,8 @@
+@@ -101,6 +122,11 @@
+     public void a(NBTTagCompound nbttagcompound) {
+         super.a(nbttagcompound);
+         this.setAngry(nbttagcompound.getBoolean("Angry"));
++        // CraftBukkit start - moved from below, SPIGOT-4893
++        if (this.getGoalTarget() == null && this.isAngry()) {
++            this.setAngry(false);
++        }
++        // CraftBukkit end
+         if (nbttagcompound.hasKeyOfType("CollarColor", 99)) {
+             this.setCollarColor(EnumColor.fromColorIndex(nbttagcompound.getInt("CollarColor")));
+         }
+@@ -137,7 +163,7 @@
+             this.world.broadcastEntityEffect(this, (byte) 8);
+         }
+ 
+-        if (!this.world.isClientSide && this.getGoalTarget() == null && this.isAngry()) {
++        if (false && !this.world.isClientSide && this.getGoalTarget() == null && this.isAngry()) { // CraftBukkit - SPIGOT-4893
+             this.setAngry(false);
+         }
+ 
+@@ -217,7 +243,8 @@
              Entity entity = damagesource.getEntity();
  
              if (this.goalSit != null) {
@@ -54,7 +75,7 @@
              }
  
              if (entity != null && !(entity instanceof EntityHuman) && !(entity instanceof EntityArrow)) {
-@@ -264,7 +286,7 @@
+@@ -264,7 +291,7 @@
                              itemstack.subtract(1);
                          }
  
@@ -63,7 +84,7 @@
                          return true;
                      }
                  } else if (item instanceof ItemDye) {
-@@ -285,7 +307,7 @@
+@@ -285,7 +312,7 @@
                  this.goalSit.setSitting(!this.isSitting());
                  this.jumping = false;
                  this.navigation.o();
@@ -72,7 +93,7 @@
              }
          } else if (item == Items.BONE && !this.isAngry()) {
              if (!entityhuman.abilities.canInstantlyBuild) {
-@@ -293,12 +315,13 @@
+@@ -293,12 +320,13 @@
              }
  
              if (!this.world.isClientSide) {