Fix #143: Battery dupe when inserting in ender cell (#177)

Technici4n · Aug 3, 2024 · fe0fde0 · fe0fde0
1 parent 330eb52
commit fe0fde0
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/main/java/owmii/powah/lib/logistics/inventory/ItemStackHandler.java b/src/main/java/owmii/powah/lib/logistics/inventory/ItemStackHandler.java
@@ -78,7 +78,8 @@ public ItemStack insertItem(int slot, @NotNull ItemStack stack, boolean simulate
 
         if (!simulate) {
             if (existing.isEmpty()) {
-                this.stacks.set(slot, reachedLimit ? ItemStackHandlerHelper.copyStackWithSize(stack, limit) : stack);
+                // We must always copy the stack because onContentsChanged might change it, messing with our later use.
+                this.stacks.set(slot, reachedLimit ? ItemStackHandlerHelper.copyStackWithSize(stack, limit) : stack.copy());
             } else {
                 existing.grow(reachedLimit ? limit : stack.getCount());
             }