From 084774e56c5390959b8d930366a6a6d9f5798725 Mon Sep 17 00:00:00 2001
From: "Dylan K. Taylor" <dktapps@pmmp.io>
Date: Sun, 4 May 2025 15:48:24 +0100
Subject: [PATCH] Don't allow registering the same command instance twice

---
 src/command/SimpleCommandMap.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/command/SimpleCommandMap.php b/src/command/SimpleCommandMap.php
index 2e4d623ef..7306b5650 100644
--- a/src/command/SimpleCommandMap.php
+++ b/src/command/SimpleCommandMap.php
@@ -150,6 +150,9 @@ class SimpleCommandMap implements CommandMap{
 		if(count($command->getPermissions()) === 0){
 			throw new \InvalidArgumentException("Commands must have a permission set");
 		}
+		if(isset($this->uniqueCommands[spl_object_id($command)])){
+			throw new \InvalidArgumentException("This Command object has already been registered");
+		}
 
 		$preferredAlias = trim($preferredAlias);
 		$fallbackPrefix = strtolower(trim($fallbackPrefix));