From 2ca607708e21513fdf00f43b05b840dba0e07560 Mon Sep 17 00:00:00 2001
From: Gauthier Roebroeck <gauthier.roebroeck@gmail.com>
Date: Mon, 24 Aug 2020 16:08:42 +0800
Subject: [PATCH] fix: database migration failure

---
 .../migration/sqlite/V20200820150923__metadata_fields_part_2.kt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/komga/src/flyway/kotlin/db/migration/sqlite/V20200820150923__metadata_fields_part_2.kt b/komga/src/flyway/kotlin/db/migration/sqlite/V20200820150923__metadata_fields_part_2.kt
index 7b925d07e..72122f405 100644
--- a/komga/src/flyway/kotlin/db/migration/sqlite/V20200820150923__metadata_fields_part_2.kt
+++ b/komga/src/flyway/kotlin/db/migration/sqlite/V20200820150923__metadata_fields_part_2.kt
@@ -26,7 +26,7 @@ left join BOOK B on B.ID = m.BOOK_ID"""
             v.filter { (it["PUBLISHER"] as String).isNotEmpty() }
               .sortedByDescending { it["NUMBER_SORT"] as Double? }
               .map { it["PUBLISHER"] as String }
-              .firstOrNull()
+              .firstOrNull() ?: ""
           val publisherLock = v.mapNotNull { it["PUBLISHER_LOCK"] as Int? }.max()
 
           val readingDir =