From 4cac36212b98dc1d1fb2f8e408828c956f733696 Mon Sep 17 00:00:00 2001
From: Andrei Solodovnikov <VoultBoy@yandex.ru>
Date: Mon, 5 Oct 2026 15:46:33 +0300
Subject: [PATCH] =?UTF-8?q?=D0=9E=D0=B1=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5?=
 =?UTF-8?q?=D0=BD=D0=B8=D0=B5=20workflows?=
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---
 .github/workflows/mdbook.yml | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/mdbook.yml b/.github/workflows/mdbook.yml
index ad7fc9c..e38487f 100644
--- a/.github/workflows/mdbook.yml
+++ b/.github/workflows/mdbook.yml
@@ -1,4 +1,4 @@
-# Builds the Russian (master) and English (english_version) editions of the
+# Builds the Russian and English editions of the
 # mdBook and deploys them as one GitHub Pages site:
 #
 #   /APS/        ← Russian
@@ -8,7 +8,7 @@ name: Deploy mdBook site to Pages
 
 on:
   push:
-    branches: ["master", "english_version"]
+    branches: ["russian_version", "english_version"]
   workflow_dispatch:
 
 permissions:
@@ -27,9 +27,11 @@ jobs:
       MDBOOK_VERSION: 0.4.36
 
     steps:
-      # ── 1. Checkout master (Russian) ──────────────────────────────────────
-      - name: Checkout master (Russian)
+      # ── 1. Checkout Russian version ──────────────────────────────────────
+      - name: Checkout Russian version
         uses: actions/checkout@v4
+        with:
+          ref:  russian_version
         # checks out into $GITHUB_WORKSPACE (i.e. the working directory)
 
       # ── 2. Install mdBook ─────────────────────────────────────────────────
@@ -68,7 +70,7 @@ jobs:
           # Use the dedicated English book.toml (sets site-url = "/APS/en/")
           cp .github/book_en.toml book.toml
 
-          # Copy language-switcher theme files from the master checkout
+          # Copy language-switcher theme files from the russian_version checkout
           cp -r ../.github/theme ./theme
 
       - name: Build English (mdbook → english_src/book/)