Fix ArmorStand#setItem flow (Fixes #2726)

Spigot-Server-Patches/Implement-Expanded-ArmorStand-API.patch

@@ -8,7 +8,7 @@ Add the following:
 - Enable/Disable slot interactions
 
 diff --git a/src/main/java/net/minecraft/server/EntityArmorStand.java b/src/main/java/net/minecraft/server/EntityArmorStand.java
-index 297ed7c1ce..961e284712 100644
+index b337fb812..d8497fa5e 100644
 --- a/src/main/java/net/minecraft/server/EntityArmorStand.java
 +++ b/src/main/java/net/minecraft/server/EntityArmorStand.java
 @@ -0,0 +0,0 @@ public class EntityArmorStand extends EntityLiving {
@@ -29,7 +29,7 @@ index 297ed7c1ce..961e284712 100644
          return (this.bE & 1 << enumitemslot.c()) != 0 || enumitemslot.a() == EnumItemSlot.Function.HAND && !this.hasArms();
      }
 diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftArmorStand.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftArmorStand.java
-index 124c3185bc..9f5c3b92e3 100644
+index 124c3185b..d1d689e5d 100644
 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftArmorStand.java
 +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftArmorStand.java
 @@ -0,0 +0,0 @@ public class CraftArmorStand extends CraftLivingEntity implements ArmorStand {
@@ -72,7 +72,7 @@ index 124c3185bc..9f5c3b92e3 100644
 +                return;
 +            case LEGS:
 +                setLeggings(item);
-+                break;
++                return;
 +            case CHEST:
 +                setChestplate(item);
 +                return;