From fd2934d10dc148d9ce2d80d1513f8576cbeb8f4d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Lorber?= <slorber@users.noreply.github.com>
Date: Fri, 10 Dec 2021 18:35:57 +0100
Subject: [PATCH] getMainDocId should return doc with both versioned or
 unversioned id (#6085)

---
 packages/docusaurus-plugin-content-docs/src/docs.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/docusaurus-plugin-content-docs/src/docs.ts b/packages/docusaurus-plugin-content-docs/src/docs.ts
index f5f4b4b094..46769abf1b 100644
--- a/packages/docusaurus-plugin-content-docs/src/docs.ts
+++ b/packages/docusaurus-plugin-content-docs/src/docs.ts
@@ -356,7 +356,11 @@ export function getMainDocId({
     if (versionHomeDoc) {
       return versionHomeDoc;
     } else if (firstDocIdOfFirstSidebar) {
-      return docs.find((doc) => doc.id === firstDocIdOfFirstSidebar)!;
+      return docs.find(
+        (doc) =>
+          doc.id === firstDocIdOfFirstSidebar ||
+          doc.unversionedId === firstDocIdOfFirstSidebar,
+      )!;
     } else {
       return docs[0];
     }