From ffa383da10a1d7b7f676ef153fd5831e8cc61fcc Mon Sep 17 00:00:00 2001
From: shagu <ericmauser@googlemail.com>
Date: Sun, 12 Apr 2020 02:04:14 +0200
Subject: [PATCH] thirdparty: abort on empty wim frames

---
 modules/thirdparty-vanilla.lua | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/modules/thirdparty-vanilla.lua b/modules/thirdparty-vanilla.lua
index daca55a5..a176a095 100644
--- a/modules/thirdparty-vanilla.lua
+++ b/modules/thirdparty-vanilla.lua
@@ -547,9 +547,12 @@ pfUI:RegisterModule("thirdparty-vanilla", "vanilla", function()
 
       -- wrap SkinCheckbox to fix issues with scrollframe breaking layers
       local SkinScrollchildCheckbox = function(f, s)
+        if not f then return end
         SkinCheckbox(f, s)
-        f.backdrop:SetParent(f:GetParent())
-        f:SetParent(f.backdrop)
+        if f:GetParent() ~= f.backdrop and f:GetParent() ~= f then
+          f.backdrop:SetParent(f:GetParent())
+          f:SetParent(f.backdrop)
+        end
       end
       do -- general tab
         SkinTab(WIM_OptionsOptionTab1)