From e527842211188a5c069ef4f4759aa291353b707f Mon Sep 17 00:00:00 2001
From: Gregory Anders <8965202+gpanders@users.noreply.github.com>
Date: Wed, 13 Dec 2023 08:14:30 -0600
Subject: [PATCH] fix(termcap): only call callback for requested capabilities
 (#26546)

If multiple XTGETTCAP requests are active at once (for example, for
requesting the Ms capability and truecolor capabilities), then the
TermResponse autocommand may fire for capabilities that were not
requested. Instead, make sure that the provided callback is only called
for capabilities that were actually requested.
---
 runtime/lua/vim/termcap.lua | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/runtime/lua/vim/termcap.lua b/runtime/lua/vim/termcap.lua
index b88d9ac9ba..e48657b3c2 100644
--- a/runtime/lua/vim/termcap.lua
+++ b/runtime/lua/vim/termcap.lua
@@ -39,6 +39,12 @@ function M.query(caps, cb)
       local k, rest = resp:match('^\027P1%+r(%x+)(.*)$')
       if k and rest then
         local cap = vim.text.hexdecode(k)
+        if not pending[cap] then
+          -- Received a response for a capability we didn't request. This can happen if there are
+          -- multiple concurrent XTGETTCAP requests
+          return
+        end
+
         local seq ---@type string?
         if rest:match('^=%x+$') then
           seq = vim.text