From 3be302afe321158b730d3ca87f337411e4617d4f Mon Sep 17 00:00:00 2001
From: Christian Gunderman <gundermanc@gmail.com>
Date: Mon, 2 Mar 2026 15:46:34 -0800
Subject: [PATCH] Update scripts/changed_prompt.js

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
---
 scripts/changed_prompt.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/scripts/changed_prompt.js b/scripts/changed_prompt.js
index 90c8638cb4..69ef2e0eaf 100644
--- a/scripts/changed_prompt.js
+++ b/scripts/changed_prompt.js
@@ -11,9 +11,10 @@ const EVALS_FILE_PREFIXES = [
 ];
 
 function main() {
+  const targetBranch = process.env.GITHUB_BASE_REF || 'main';
   try {
-    // Fetch main branch from origin.
-    execSync('git fetch origin main', {
+    // Fetch target branch from origin.
+    execSync(`git fetch origin ${targetBranch}`, {
       stdio: 'ignore',
     });