From a69b3865568e57efa1537cabf7dccc425657561b Mon Sep 17 00:00:00 2001
From: Alan Guo Xiang Tan <gxtan1990@gmail.com>
Date: Tue, 26 Dec 2023 11:10:11 +0800
Subject: [PATCH] DEV: Fix can't modify frozen string error when reporting
 server errors (#25033)

Follow up to https://github.com/discourse/discourse/commit/9d658591d67122286f2b4aa484bd1697f183f965
---
 spec/rails_helper.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/spec/rails_helper.rb b/spec/rails_helper.rb
index 5595e3cbdb9..d0f0df10ae6 100644
--- a/spec/rails_helper.rb
+++ b/spec/rails_helper.rb
@@ -582,7 +582,7 @@ RSpec.configure do |config|
 
   config.after :each do |example|
     if example.exception && RspecErrorTracker.exceptions.present?
-      lines = (RSpec.current_example.metadata[:extra_failure_lines] ||= "")
+      lines = (RSpec.current_example.metadata[:extra_failure_lines] ||= +"")
 
       lines << "~~~~~~~ SERVER EXCEPTIONS ~~~~~~~"