From 6e0da3bf7a7b81893dbcca542519cf594d7d3232 Mon Sep 17 00:00:00 2001
From: advplyr <advplyr@protonmail.com>
Date: Sat, 21 Feb 2026 16:00:38 -0600
Subject: [PATCH] Fix updating author name merging with same name authors in a
 different library #4628

---
 server/controllers/AuthorController.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/server/controllers/AuthorController.js b/server/controllers/AuthorController.js
index 50eeda31a..82ed3e50a 100644
--- a/server/controllers/AuthorController.js
+++ b/server/controllers/AuthorController.js
@@ -113,7 +113,7 @@ class AuthorController {
       payload.lastFirst = Database.authorModel.getLastFirst(payload.name)
     }
 
-    // Check if author name matches another author and merge the authors
+    // Check if author name matches another author in the same library and merge the authors
     let existingAuthor = null
     if (authorNameUpdate) {
       existingAuthor = await Database.authorModel.findOne({
@@ -121,7 +121,8 @@ class AuthorController {
           id: {
             [sequelize.Op.not]: req.author.id
           },
-          name: payload.name
+          name: payload.name,
+          libraryId: req.author.libraryId
         }
       })
     }