Fix crash caused by accessing registry too early

leaf-server/minecraft-patches/features/0321-Leaves-Fork-cache-item-max-stack-size.patch

@@ -9,7 +9,7 @@ Original license: GPL-3.0-only
 Original project: https://github.com/Lumine1909/Leaves_Fork
 
 diff --git a/net/minecraft/core/component/PatchedDataComponentMap.java b/net/minecraft/core/component/PatchedDataComponentMap.java
-index b0967af2a3f85dad242ec7475ec9d4f7d7badfc7..a41e358035655236f4539a9fb2e5e1aff99cecb8 100644
+index b0967af2a3f85dad242ec7475ec9d4f7d7badfc7..d685efdb9241e2d82b5a270444d140646d2f4f3b 100644
 --- a/net/minecraft/core/component/PatchedDataComponentMap.java
 +++ b/net/minecraft/core/component/PatchedDataComponentMap.java
 @@ -18,6 +18,7 @@ public final class PatchedDataComponentMap implements DataComponentMap, net.caff
@@ -20,31 +20,37 @@ index b0967af2a3f85dad242ec7475ec9d4f7d7badfc7..a41e358035655236f4539a9fb2e5e1af
      private net.caffeinemc.mods.lithium.common.util.change_tracking.ChangeSubscriber<PatchedDataComponentMap> subscriber; // Leaf - Lithium - equipment tracking
 
      public PatchedDataComponentMap(final DataComponentMap prototype) {
-@@ -30,6 +31,7 @@ public final class PatchedDataComponentMap implements DataComponentMap, net.caff
+@@ -30,6 +31,13 @@ public final class PatchedDataComponentMap implements DataComponentMap, net.caff
          this.prototype = prototype;
          this.patch = patch;
          this.copyOnWrite = copyOnWrite;
-+        this.detectMaxStackSizeChange(null); // Leaves - cache item max stack size
++        // Leaves start - cache item max stack size
++        if (!prototype.isEmpty() || !patch.isEmpty()) {
++            detectMaxStackSizeChange(null);
++        } else {
++            this.maxStackSize = 1;
++        }
++        // Leaves end - cache item max stack size
      }
 
      public static PatchedDataComponentMap fromPatch(final DataComponentMap prototype, final DataComponentPatch patch) {
-@@ -77,6 +79,7 @@ public final class PatchedDataComponentMap implements DataComponentMap, net.caff
+@@ -77,6 +85,7 @@ public final class PatchedDataComponentMap implements DataComponentMap, net.caff
              lastValue = (Optional<T>)this.patch.put(type, Optional.ofNullable(value));
          }
 
 +        this.detectMaxStackSizeChange(type); // Leaves - cache item max stack size
          return lastValue != null ? lastValue.orElse(defaultValue) : defaultValue;
      }
 
-@@ -94,6 +97,7 @@ public final class PatchedDataComponentMap implements DataComponentMap, net.caff
+@@ -94,6 +103,7 @@ public final class PatchedDataComponentMap implements DataComponentMap, net.caff
              lastValue = (Optional<? extends T>)this.patch.remove(type);
          }
 
 +        this.detectMaxStackSizeChange(type); // Leaves - cache item max stack size
          return (T)(lastValue != null ? lastValue.orElse(null) : defaultValue);
      }
 
-@@ -118,17 +122,20 @@ public final class PatchedDataComponentMap implements DataComponentMap, net.caff
+@@ -118,17 +128,20 @@ public final class PatchedDataComponentMap implements DataComponentMap, net.caff
          } else {
              this.patch.remove(type);
          }
@@ -65,7 +71,7 @@ index b0967af2a3f85dad242ec7475ec9d4f7d7badfc7..a41e358035655236f4539a9fb2e5e1af
      }
 
      public void setAll(final DataComponentMap components) {
-@@ -266,4 +273,16 @@ public final class PatchedDataComponentMap implements DataComponentMap, net.caff
+@@ -266,4 +279,16 @@ public final class PatchedDataComponentMap implements DataComponentMap, net.caff
      public String toString() {
          return "{" + this.stream().map(TypedDataComponent::toString).collect(Collectors.joining(", ")) + "}";
      }