Extend Blackhole grace period to 12 hours

src/NzbDrone.Core.Test/DecisionEngineTests/HistorySpecificationFixture.cs

@@ -99,9 +99,9 @@ namespace NzbDrone.Core.Test.DecisionEngineTests
         }
 
         [Test]
-        public void should_return_true_if_latest_history_item_is_old_than_one_hour()
+        public void should_return_true_if_latest_history_item_is_older_than_twleve_hours()
         {
-            GivenMostRecentForEpisode(FIRST_EPISODE_ID, string.Empty, _notupgradableQuality, DateTime.UtcNow.AddHours(-6), HistoryEventType.DownloadFailed);
+            GivenMostRecentForEpisode(FIRST_EPISODE_ID, string.Empty, _notupgradableQuality, DateTime.UtcNow.AddHours(-13), HistoryEventType.DownloadFailed);
             _upgradeHistory.IsSatisfiedBy(_parseResultMulti, null).Accepted.Should().BeTrue();
         }
 
@@ -167,5 +167,12 @@ namespace NzbDrone.Core.Test.DecisionEngineTests
 
             _upgradeHistory.IsSatisfiedBy(_parseResultSingle, null).Accepted.Should().BeFalse();
         }
+
+        [Test]
+        public void should_return_false_if_latest_history_item_is_only_one_hour_old()
+        {
+            GivenMostRecentForEpisode(FIRST_EPISODE_ID, string.Empty, _notupgradableQuality, DateTime.UtcNow.AddHours(-1), HistoryEventType.DownloadFailed);
+            _upgradeHistory.IsSatisfiedBy(_parseResultMulti, null).Accepted.Should().BeTrue();
+        }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/RssSync/HistorySpecification.cs

@@ -38,7 +38,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
                 _logger.Debug("Checking current status of episode [{0}] in history", episode.Id);
                 var mostRecent = _historyService.MostRecentForEpisode(episode.Id);
 
-                if (mostRecent != null && mostRecent.EventType == HistoryEventType.Grabbed && mostRecent.DownloadId.IsNullOrWhiteSpace() && mostRecent.Date.After(DateTime.UtcNow.AddHours(-1)))
+                if (mostRecent != null && mostRecent.EventType == HistoryEventType.Grabbed && mostRecent.DownloadId.IsNullOrWhiteSpace() && mostRecent.Date.After(DateTime.UtcNow.AddHours(-12)))
                 {
                     if (!_qualityUpgradableSpecification.CutoffNotMet(subject.Series.Profile, mostRecent.Quality, subject.ParsedEpisodeInfo.Quality))
                     {