From c184e7ddcc54b266c45d75cdf5173e713338e882 Mon Sep 17 00:00:00 2001
From: Taloth Saldono <Taloth@users.noreply.github.com>
Date: Thu, 11 May 2017 06:32:09 +0200
Subject: [PATCH] Fixed: Multiple Scene Mapping exception even when the
 mappings pointed to the same tvdbid.

Closes #1917
---
 .../Scene/SceneMappingServiceFixture.cs            | 14 ++++++++++++++
 .../DataAugmentation/Scene/SceneMappingService.cs  |  6 ++++--
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/src/NzbDrone.Core.Test/DataAugmentation/Scene/SceneMappingServiceFixture.cs b/src/NzbDrone.Core.Test/DataAugmentation/Scene/SceneMappingServiceFixture.cs
index 42b0156ff..1f1a6ff8e 100644
--- a/src/NzbDrone.Core.Test/DataAugmentation/Scene/SceneMappingServiceFixture.cs
+++ b/src/NzbDrone.Core.Test/DataAugmentation/Scene/SceneMappingServiceFixture.cs
@@ -346,6 +346,20 @@ namespace NzbDrone.Core.Test.DataAugmentation.Scene
             Assert.Throws<InvalidSceneMappingException>(() => Subject.FindTvdbId("Amareto", "Amareto.S01E01.720p.WEB-DL-Viva"));
         }
 
+        [Test]
+        public void should_not_throw_if_multiple_mappings_with_same_tvdbid()
+        {
+            var mappings = new List<SceneMapping>
+            {
+                new SceneMapping { Title = "Amareto", ParseTerm = "amareto", SearchTerm = "Amareto", TvdbId = 100 },
+                new SceneMapping { Title = "Amareto", ParseTerm = "amareto", SearchTerm = "Amareto", TvdbId = 100 }
+            };
+
+            Mocker.GetMock<ISceneMappingRepository>().Setup(c => c.All()).Returns(mappings);
+
+            Subject.FindTvdbId("Amareto", "Amareto.S01E01.720p.WEB-DL-Viva").Should().Be(100);
+        }
+
         private void AssertNoUpdate()
         {
             _provider1.Verify(c => c.GetSceneMappings(), Times.Once());
diff --git a/src/NzbDrone.Core/DataAugmentation/Scene/SceneMappingService.cs b/src/NzbDrone.Core/DataAugmentation/Scene/SceneMappingService.cs
index 5b66f8fa4..c657ed7fa 100644
--- a/src/NzbDrone.Core/DataAugmentation/Scene/SceneMappingService.cs
+++ b/src/NzbDrone.Core/DataAugmentation/Scene/SceneMappingService.cs
@@ -102,9 +102,11 @@ namespace NzbDrone.Core.DataAugmentation.Scene
                 return null;
             }
 
-            if (mappings.Count <= 1)
+            var distinctMappings = mappings.DistinctBy(v => v.TvdbId).ToList();
+
+            if (distinctMappings.Count <= 1)
             {
-                return mappings.FirstOrDefault();
+                return distinctMappings.FirstOrDefault();
             }
 
             throw new InvalidSceneMappingException(mappings);