Fixed: SeasonPass didn't update Series monitored flag if only those were changed.

src/NzbDrone.Core.Test/TvTests/EpisodeMonitoredServiceTests/SetEpisodeMontitoredFixture.cs

@@ -66,6 +66,18 @@ namespace NzbDrone.Core.Test.TvTests.EpisodeMonitoredServiceTests
             _series.Seasons = new List<Season>{new Season { Monitored = false, SeasonNumber = 0 }};
         }
 
+        [Test]
+        public void should_be_able_to_monitor_series_without_changing_episodes()
+        {
+            Subject.SetEpisodeMonitoredStatus(_series, null);
+
+            Mocker.GetMock<ISeriesService>()
+                  .Verify(v => v.UpdateSeries(It.IsAny<Series>()), Times.Once());
+
+            Mocker.GetMock<IEpisodeService>()
+                  .Verify(v => v.UpdateEpisodes(It.IsAny<List<Episode>>()), Times.Never());
+        }
+
         [Test]
         public void should_be_able_to_monitor_all_episodes()
         {

src/NzbDrone.Core/Tv/EpisodeMonitoredService.cs

@@ -25,6 +25,8 @@ namespace NzbDrone.Core.Tv
         }
 
         public void SetEpisodeMonitoredStatus(Series series, MonitoringOptions monitoringOptions)
+        {
+            if (monitoringOptions != null)
             {
                 _logger.Debug("[{0}] Setting episode monitored status.", series.Title);
 
@@ -90,10 +92,12 @@ namespace NzbDrone.Core.Tv
                     }
                 }
 
-            _seriesService.UpdateSeries(series);
                 _episodeService.UpdateEpisodes(episodes);
             }
 
+            _seriesService.UpdateSeries(series);
+        }
+
         private void ToggleEpisodesMonitoredState(IEnumerable<Episode> episodes, bool monitored)
         {
             foreach (var episode in episodes)