From 97b86378f4d49ed6a21099e895dde63e3a67cb22 Mon Sep 17 00:00:00 2001
From: David Mejorado <david.mejorado@gmail.com>
Date: Sun, 11 Jan 2026 16:46:29 -0800
Subject: [PATCH] fix: avoid clobbering existing lists

---
 lua/tsc/utils.lua | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lua/tsc/utils.lua b/lua/tsc/utils.lua
index 45029e6..ded3919 100644
--- a/lua/tsc/utils.lua
+++ b/lua/tsc/utils.lua
@@ -132,7 +132,11 @@ M.set_qflist = function(errors, opts)
   local DEFAULT_OPTS = { auto_open = true, auto_close = false, use_trouble = false }
   local final_opts = vim.tbl_extend("force", DEFAULT_OPTS, opts or {})
 
-  vim.fn.setqflist({}, "r", { title = "TSC", items = errors })
+  -- Replace the quickfix list only when the existing list was also created by
+  -- TSC, otherwise create a new entry in the quickfix history.
+  local qf_action = vim.fn.getqflist({ title = 0 }).title == "TSC" and "r" or " "
+
+  vim.fn.setqflist({}, qf_action, { title = "TSC", items = errors })
 
   if #errors > 0 and final_opts.auto_open then
     M.open_qflist(final_opts.use_trouble, final_opts.auto_focus)