From e6c1545b199bec39058bd277ea7062bf887409ec Mon Sep 17 00:00:00 2001
From: Gregory Anders <8965202+gpanders@users.noreply.github.com>
Date: Mon, 3 Jan 2022 12:40:09 -0700
Subject: [PATCH] fix(lsp): resolve nil bufnr (#16902)

Related: #16889, #16745
---
 runtime/lua/vim/lsp/util.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/runtime/lua/vim/lsp/util.lua b/runtime/lua/vim/lsp/util.lua
index 603ed0d290..dcd68a3433 100644
--- a/runtime/lua/vim/lsp/util.lua
+++ b/runtime/lua/vim/lsp/util.lua
@@ -1505,7 +1505,7 @@ do --[[ References ]]
   ---@param bufnr number Buffer id
   function M.buf_clear_references(bufnr)
     validate { bufnr = {bufnr, 'n', true} }
-    api.nvim_buf_clear_namespace(bufnr, reference_ns, 0, -1)
+    api.nvim_buf_clear_namespace(bufnr or 0, reference_ns, 0, -1)
   end
 
   --- Shows a list of document highlights for a certain buffer.