From e413822ae1364e9ff182aeec1d149b0ecef22e8c Mon Sep 17 00:00:00 2001
From: Xinhao Yuan <xinhaoyuan@gmail.com>
Date: Sun, 9 Jan 2022 16:38:39 -0500
Subject: [PATCH] Avoid null error when screen configuration is changed.

---
 layout.lua | 1 +
 1 file changed, 1 insertion(+)

diff --git a/layout.lua b/layout.lua
index b8cc215..d1ff077 100644
--- a/layout.lua
+++ b/layout.lua
@@ -182,6 +182,7 @@ function module.create(args_or_name, editor, default_cmd)
     end
 
     local function get_instance_data(screen, tag)
+        if screen == nil then return end
         local workarea = screen.workarea
         local instance = get_instance_(tag)
         local cmd = instance.cmd or module.global_default_cmd