Updated Upstream (Paper)

Upstream has released updates that appear to apply and compile correctly

Paper Changes:
PaperMC/Paper@174eab01 Update Improve exact choice recipe ingredients (#13788)

gradle.properties

@@ -3,7 +3,7 @@ group = org.purpurmc.purpur
 mcVersion = 26.1.2
 apiVersion = 26.1.2
 channel=EXPERIMENTAL
-paperCommit = 5d62ec0ed9d7fdc4c2c1dbcd6cb79aaed29f2186
+paperCommit = 174eab0192cf7a56287330d422650f13e361e59f
 
 org.gradle.configuration-cache = true
 org.gradle.caching = true

purpur-server/minecraft-patches/sources/net/minecraft/world/item/crafting/Ingredient.java.patch

@@ -3,13 +3,13 @@
 @@ -35,6 +_,7 @@
      public final HolderSet<Item> values;
      // CraftBukkit start
-     private java.util.@org.jspecify.annotations.Nullable List<ItemStack> itemStacks;
+     private java.util.@org.jspecify.annotations.Nullable Set<ItemStack> itemStacks; // Paper - Improve exact choice recipe ingredients
 +    public Predicate<org.bukkit.inventory.ItemStack> predicate; // Purpur - Add predicate to recipe's ExactChoice ingredient
  
      public boolean isExact() {
          return this.itemStacks != null;
-@@ -88,6 +_,11 @@
-             return false;
+@@ -86,6 +_,11 @@
+             return this.itemStacks.contains(input); // Paper - Improve exact choice recipe ingredients (hashing FTW!)
          }
          // CraftBukkit end
 +        // Purpur start - Add predicate to recipe's ExactChoice ingredient