From e82875f96406ea043d945aad1ba19ee453345dba Mon Sep 17 00:00:00 2001
From: Qstick <qstick@gmail.com>
Date: Mon, 28 Dec 2020 21:55:09 -0500
Subject: [PATCH] Fixed: Don't wipe categories when updating Newznab Indexer

---
 src/NzbDrone.Core/Indexers/IndexerFactory.cs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/NzbDrone.Core/Indexers/IndexerFactory.cs b/src/NzbDrone.Core/Indexers/IndexerFactory.cs
index 4575754ac..cf0e97aee 100644
--- a/src/NzbDrone.Core/Indexers/IndexerFactory.cs
+++ b/src/NzbDrone.Core/Indexers/IndexerFactory.cs
@@ -256,5 +256,18 @@ namespace NzbDrone.Core.Indexers
 
             return base.Create(definition);
         }
+
+        public override void Update(IndexerDefinition definition)
+        {
+            var provider = _providers.First(v => v.GetType().Name == definition.Implementation);
+
+            if (definition.Implementation == typeof(Newznab.Newznab).Name)
+            {
+                var settings = (NewznabSettings)definition.Settings;
+                settings.Categories = _newznabCapabilitiesProvider.GetCapabilities(settings)?.Categories.GetTorznabCategoryList() ?? null;
+            }
+
+            base.Update(definition);
+        }
     }
 }