Fixed: Overly aggressive exception release group parsing

Closes #6591

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

@@ -44,6 +44,7 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("[Erai-raws] Series - 0955 ~ 1005 [1080p]", "Erai-raws")]
         [TestCase("[Exiled-Destiny] Series Title", "Exiled-Destiny")]
         [TestCase("Series.Title.S01E09.1080p.DSNP.WEB-DL.DDP2.0.H.264-VARYG", "VARYG")]
+        [TestCase("Stargate SG-1 (1997) - S01E01-02 - Children of the Gods (Showtime) (1080p.BD.DD5.1.x265-TheSickle[TAoE])", "TheSickle")]
 
         // [TestCase("", "")]
         public void should_parse_release_group(string title, string expected)

src/NzbDrone.Core/Parser/Parser.cs

@@ -533,7 +533,7 @@ namespace NzbDrone.Core.Parser
         private static readonly Regex ExceptionReleaseGroupRegexExact = new Regex(@"(?<releasegroup>(?:D\-Z0N3|Fight-BB|VARYG|E\.N\.D)\b)", RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
         // groups whose releases end with RlsGroup) or RlsGroup]
-        private static readonly Regex ExceptionReleaseGroupRegex = new Regex(@"(?<releasegroup>(Silence|afm72|Panda|Ghost|MONOLITH|Tigole|Joy|ImE|UTR|t3nzin|Anime Time|Project Angel|Hakata Ramen|HONE|Vyndros|SEV|Garshasp|Kappa|Natty|RCVR|SAMPA|YOGI|r00t|EDGE2020|RZeroX)(?=\]|\)))", RegexOptions.IgnoreCase | RegexOptions.Compiled);
+        private static readonly Regex ExceptionReleaseGroupRegex = new Regex(@"(?<=[._ \[])(?<releasegroup>(Silence|afm72|Panda|Ghost|MONOLITH|Tigole|Joy|ImE|UTR|t3nzin|Anime Time|Project Angel|Hakata Ramen|HONE|Vyndros|SEV|Garshasp|Kappa|Natty|RCVR|SAMPA|YOGI|r00t|EDGE2020|RZeroX)(?=\]|\)))", RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
         private static readonly Regex YearInTitleRegex = new Regex(@"^(?<title>.+?)[-_. ]+?[\(\[]?(?<year>\d{4})[\]\)]?",
                                                                 RegexOptions.IgnoreCase | RegexOptions.Compiled);