Fixed: Treat season packs with volume as partial season packs

src/NzbDrone.Core.Test/ParserTests/SeasonParserFixture.cs

@@ -72,6 +72,7 @@ namespace NzbDrone.Core.Test.ParserTests
         }
 
         [TestCase("The.Series.2016.S02.Part.1.1080p.NF.WEBRip.DD5.1.x264-NTb", "The Series 2016", 2, 1)]
+        [TestCase("The.Series.S07.Vol.1.1080p.NF.WEBRip.DD5.1.x264-NTb", "The Series", 7, 1)]
         public void should_parse_partial_season_release(string postTitle, string title, int season, int seasonPart)
         {
             var result = Parser.Parser.ParseTitle(postTitle);

src/NzbDrone.Core/Parser/Parser.cs

@@ -199,7 +199,7 @@ namespace NzbDrone.Core.Parser
                     RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
                 // Partial season pack
-                new Regex(@"^(?<title>.+?)(?:\W+S(?<season>(?<!\d+)(?:\d{1,2})(?!\d+))\W+(?:(?:Part\W?|(?<!\d+\W+)e)(?<seasonpart>\d{1,2}(?!\d+)))+)",
+                new Regex(@"^(?<title>.+?)(?:\W+S(?<season>(?<!\d+)(?:\d{1,2})(?!\d+))\W+(?:(?:(?:Part|Vol)\W?|(?<!\d+\W+)e)(?<seasonpart>\d{1,2}(?!\d+)))+)",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
                                 // Anime - 4 digit absolute episode number