From c17d4ee95dc1fcbe9c93b53db9480aba87d3dff8 Mon Sep 17 00:00:00 2001
From: EvilDragonfiend <87972842+EvilDragonfiend@users.noreply.github.com>
Date: Sat, 9 Dec 2023 00:25:30 +0900
Subject: [PATCH] This is a protected list (#10254)

---
 code/modules/library/lib_items.dm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/modules/library/lib_items.dm b/code/modules/library/lib_items.dm
index 0b27fdfa1f532..bc914ba917f72 100644
--- a/code/modules/library/lib_items.dm
+++ b/code/modules/library/lib_items.dm
@@ -129,7 +129,7 @@
 		create_random_books(books_to_load, src, FALSE, random_category)
 		load_random_books = FALSE
 	if(contents.len)
-		var/obj/item/book/choice = input(user, "Which book would you like to remove from the shelf?") as null|obj in sort_names(contents)
+		var/obj/item/book/choice = input(user, "Which book would you like to remove from the shelf?") as null|obj in sort_names(contents.Copy())
 		if(choice)
 			if(!(user.mobility_flags & MOBILITY_USE) || user.stat || user.restrained() || !in_range(loc, user))
 				return