From f68fdcf703baecb5b7e10b059278ae39978e209c Mon Sep 17 00:00:00 2001
From: Robert WC Seifert <rseifert.phone@gmail.com>
Date: Thu, 11 Apr 2019 11:29:14 -0400
Subject: [PATCH] Fix for SidedInvWrapper isItemValid using wrong slot (#5642)

---
 .../java/net/minecraftforge/items/wrapper/SidedInvWrapper.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main/java/net/minecraftforge/items/wrapper/SidedInvWrapper.java b/src/main/java/net/minecraftforge/items/wrapper/SidedInvWrapper.java
index a5395b180..72bd5a1c4 100644
--- a/src/main/java/net/minecraftforge/items/wrapper/SidedInvWrapper.java
+++ b/src/main/java/net/minecraftforge/items/wrapper/SidedInvWrapper.java
@@ -245,6 +245,7 @@ public class SidedInvWrapper implements IItemHandlerModifiable
     @Override
     public boolean isItemValid(int slot, @Nonnull ItemStack stack)
     {
-        return inv.isItemValidForSlot(slot, stack);
+        int slot1 = getSlot(inv, slot, side);
+        return slot1 == -1 ? false : inv.isItemValidForSlot(slot1, stack);
     }
 }