From 81d2d88f70e054b92a58e1a4125f34a01fcb789e Mon Sep 17 00:00:00 2001
From: Mike J McGuirk <62523234+mikejmcguirk@users.noreply.github.com>
Date: Wed, 8 Oct 2025 22:34:44 -0400
Subject: [PATCH] feat(undotree): set 'filetype' #36091

---
 runtime/pack/dist/opt/nvim.undotree/lua/undotree.lua | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/runtime/pack/dist/opt/nvim.undotree/lua/undotree.lua b/runtime/pack/dist/opt/nvim.undotree/lua/undotree.lua
index 3edae8d4e4..14875fa464 100644
--- a/runtime/pack/dist/opt/nvim.undotree/lua/undotree.lua
+++ b/runtime/pack/dist/opt/nvim.undotree/lua/undotree.lua
@@ -401,6 +401,8 @@ function M.open(opts)
       end
     end,
   })
+
+  vim.bo[b].filetype = 'nvim-undotree'
 end
 
 return M