From 43ac97339080991db5f0144d04283a87984ef389 Mon Sep 17 00:00:00 2001
From: Junya Morioka <mjun@mjunya.com>
Date: Fri, 9 Jan 2026 03:05:28 +0900
Subject: [PATCH] fix(ci): checkout default branch in Update Docs job

Checkout the default branch instead of the tag to avoid detached HEAD
state, which caused git pull to fail.
---
 .github/workflows/build.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 624a795..d050a1d 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -241,6 +241,8 @@ jobs:
       DEFAULT_BRANCH: ${{ github.event.repository.default_branch }}
     steps:
       - uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.repository.default_branch }}
 
       - uses: actions/setup-python@v5
         with: