From 30e7fb2e32a636ba9713abc6545fab6f0ea6183c Mon Sep 17 00:00:00 2001
From: ZyX <kp-pav@yandex.ru>
Date: Mon, 26 Mar 2018 00:45:38 +0300
Subject: shada: Also filter out invalid cursor position when writing '0' mark

Based on https://github.com/neovim/neovim/pull/5908#issuecomment-375909903, but
with adjusted condition as line number or column less then zero should not
appear at all based on what I know.
---
 src/nvim/shada.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/nvim/shada.c b/src/nvim/shada.c
index fbee9beacc..f726f09fad 100644
--- a/src/nvim/shada.c
+++ b/src/nvim/shada.c
@@ -2796,7 +2796,7 @@ static ShaDaWriteResult shada_write(ShaDaWriteDef *const sd_writer,
 
   // Update numbered marks: '0' should be replaced with the current position,
   // '9' should be removed and all other marks shifted.
-  if (!ignore_buf(curbuf, &removable_bufs)) {
+  if (!ignore_buf(curbuf, &removable_bufs) && curwin->w_cursor.lnum != 0) {
     replace_numbered_mark(wms, 0, (PossiblyFreedShadaEntry) {
       .can_free_entry = false,
       .data = {
-- 
cgit