From 57837bbf67c10638e0684c93bb29e88ca9b07b52 Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Fri, 11 Aug 2023 17:09:00 +0000
Subject: [PATCH] Do not crash if in buffer mode and the last buffer is deleted
 using the command.

---
 mode-tree.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mode-tree.c b/mode-tree.c
index 5a213df4..fa251c8d 100644
--- a/mode-tree.c
+++ b/mode-tree.c
@@ -497,7 +497,7 @@ mode_tree_build(struct mode_tree_data *mtd)
 	mode_tree_clear_lines(mtd);
 	mode_tree_build_lines(mtd, &mtd->children, 0);
 
-	if (tag == UINT64_MAX)
+	if (mtd->line_list != NULL && tag == UINT64_MAX)
 		tag = mtd->line_list[mtd->current].item->tag;
 	mode_tree_set_current(mtd, tag);