Update to Minecraft 1.15.1

nms-patches/ItemStack.patch

@@ -287,19 +287,7 @@
      public NBTTagCompound getOrCreateTag() {
          if (this.tag == null) {
              this.setTag(new NBTTagCompound());
-@@ -386,6 +595,11 @@
- 
-     public void setTag(@Nullable NBTTagCompound nbttagcompound) {
-         this.tag = nbttagcompound;
-+        // CraftBukkit start - ensure null tags do not get inappropriately used (SpigotCraft#463)
-+        if (this.tag == null && this.item != null && this.item.usesDurability()) {
-+            this.setDamage(this.getDamage());
-+        }
-+        // CraftBukkit end
-     }
- 
-     public IChatBaseComponent getName() {
-@@ -494,6 +708,12 @@
+@@ -498,6 +707,12 @@
      }
  
      public void setRepairCost(int i) {
@@ -312,7 +300,7 @@
          this.getOrCreateTag().setInt("RepairCost", i);
      }
  
-@@ -516,7 +736,7 @@
+@@ -520,7 +735,7 @@
              object = this.getItem().a(enumitemslot);
          }
  
@@ -321,7 +309,7 @@
              attributemodifier1.a(false);
          });
          return (Multimap) object;
-@@ -539,6 +759,13 @@
+@@ -543,6 +758,13 @@
          nbttaglist.add(nbttagcompound);
      }