Fixed: Loading queue when there are pending items that were added before upgrading

Fixes #7823

Co-Authored-By: Mark McDowall <markus101@users.noreply.github.com>

src/NzbDrone.Core.Test/Download/Pending/PendingReleaseServiceTests/AddFixture.cs

@@ -89,6 +89,7 @@ namespace NzbDrone.Core.Test.Download.Pending.PendingReleaseServiceTests
                                                    .With(h => h.Title = title)
                                                    .With(h => h.Release = release)
                                                    .With(h => h.Reason = reason)
+                                                   .With(h => h.ParsedMovieInfo = _parsedMovieInfo)
                                                    .Build();
 
             _heldReleases.AddRange(heldReleases);

src/NzbDrone.Core.Test/Download/Pending/PendingReleaseServiceTests/RemovePendingFixture.cs

@@ -52,6 +52,7 @@ namespace NzbDrone.Core.Test.Download.Pending.PendingReleaseServiceTests
             _pending.Add(new PendingRelease
             {
                 Id = id,
+                Title = "Movie.Title.2020.720p-Radarr",
                 ParsedMovieInfo = new ParsedMovieInfo { MovieTitles = new List<string> { title }, Year = year },
                 MovieId = _movie.Id
             });

src/NzbDrone.Core/Download/Pending/PendingReleaseService.cs

@@ -283,6 +283,12 @@ namespace NzbDrone.Core.Download.Pending
                     return null;
                 }
 
+                // Languages will be empty if added before upgrading to v4, reparsing the languages if they're empty will set it to Unknown or better.
+                if (release.ParsedMovieInfo.Languages.Empty())
+                {
+                    release.ParsedMovieInfo.Languages = LanguageParser.ParseLanguages(release.Title);
+                }
+
                 release.RemoteMovie = new RemoteMovie
                 {
                     Movie = movie,