From 5e46f649e27294ccb3688a43e6eb200aa4fe4ad3 Mon Sep 17 00:00:00 2001
From: Gregory Anders <8965202+gpanders@users.noreply.github.com>
Date: Thu, 18 Nov 2021 12:27:46 -0700
Subject: [PATCH] fix(diagnostic): don't use nil col if missing from qflist
 (#16357)

If the quickfixlist item doesn't contain a column it is reported as 0.
Rather than using a nil value in such a case (which breaks diagnostics
elsewhere), just keep the 0 value.
---
 runtime/lua/vim/diagnostic.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/runtime/lua/vim/diagnostic.lua b/runtime/lua/vim/diagnostic.lua
index 191b9b9145..0bc7a305f0 100644
--- a/runtime/lua/vim/diagnostic.lua
+++ b/runtime/lua/vim/diagnostic.lua
@@ -1545,7 +1545,7 @@ function M.fromqflist(list)
   for _, item in ipairs(list) do
     if item.valid == 1 then
       local lnum = math.max(0, item.lnum - 1)
-      local col = item.col > 0 and (item.col - 1) or nil
+      local col = math.max(0, item.col - 1)
       local end_lnum = item.end_lnum > 0 and (item.end_lnum - 1) or lnum
       local end_col = item.end_col > 0 and (item.end_col - 1) or col
       local severity = item.type ~= "" and M.severity[item.type] or M.severity.ERROR