From 3d96b0ffff1d652306e5b7728cb60d71c444964b Mon Sep 17 00:00:00 2001
From: shagu <ericmauser@googlemail.com>
Date: Sun, 1 Jun 2025 14:45:32 +0200
Subject: [PATCH] libspell: skip spell index of invalid spells

---
 libs/libspell.lua | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libs/libspell.lua b/libs/libspell.lua
index 81eaa01..439d26f 100644
--- a/libs/libspell.lua
+++ b/libs/libspell.lua
@@ -44,6 +44,7 @@ end
 -- return:      [number],[string]   spell index and spellbook id
 local spellindex = {}
 function libspell.GetSpellIndex(name, rank)
+  if not name then return end
   local cache = spellindex[name..(rank or "")]
   if cache then return cache[1], cache[2] end