fix: open the file in nvim when the terminal plugin wipes its buffer

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

internal/ui/app/edit.go

@@ -169,7 +169,9 @@ func (m *Model) handleEditDone(msg editDoneMsg) tea.Cmd {
 // that terminal's own process (the nvim plugin, or :terminal lazysecrets),
 // it waits for the terminal to close, so the file opens in the window
 // below rather than in one about to close. Otherwise (a shell in a
-// terminal) it opens it in the previous window now.
+// terminal) it opens it in the previous window now. The autocmd isn't
+// the buffer's own: snacks wipes the buffer when the terminal closes,
+// which would delete it before it runs.
 const nvimLua = `local path, line, pid = ...
 local function open()
   local ok, err = pcall(vim.cmd, "edit " .. vim.fn.fnameescape(path))
@@ -178,7 +180,11 @@ local function open()
 end
 for _, b in ipairs(vim.api.nvim_list_bufs()) do
   if vim.bo[b].buftype == "terminal" and vim.b[b].terminal_job_pid == pid then
-    vim.api.nvim_create_autocmd("TermClose", { buffer = b, once = true, callback = function() vim.defer_fn(open, 50) end })
+    vim.api.nvim_create_autocmd("TermClose", { callback = function(ev)
+      if ev.buf ~= b then return end
+      vim.defer_fn(open, 50)
+      return true
+    end })
     return
   end
 end