Fixed: Parsing of quality when release group contains Remux

Closes #4594

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

@@ -139,6 +139,7 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("The Series S01E07 - Motor zmen (CZ)[TvRip][HEVC][720p]", false)]
         [TestCase("The.Series.S05E06.720p.HDTV.x264-FHD", false)]
         [TestCase("Series.Title.1x01.ITA.720p.x264-RlsGrp [01/54] - \"series.title.1x01.ita.720p.x264-rlsgrp.nfo\"", false)]
+        [TestCase("[TMS-Remux].Kamen.Rider.X.21.720p.[76EA1C53].mkv", false)]
         public void should_parse_hdtv720p_quality(string title, bool proper)
         {
             ParseAndVerifyQuality(title, Quality.HDTV720p, proper);

src/NzbDrone.Core/Parser/QualityParser.cs

@@ -64,7 +64,7 @@ namespace NzbDrone.Core.Parser
 
         private static readonly Regex HighDefPdtvRegex = new Regex(@"hr[-_. ]ws", RegexOptions.Compiled | RegexOptions.IgnoreCase);
 
-        private static readonly Regex RemuxRegex = new Regex(@"\b(?<remux>(BD)?[-_. ]?Remux)\b", RegexOptions.Compiled | RegexOptions.IgnoreCase);
+        private static readonly Regex RemuxRegex = new Regex(@"[_. ](?<remux>(?:(BD)[-_. ])?Remux)\b", RegexOptions.Compiled | RegexOptions.IgnoreCase);
 
         public static QualityModel ParseQuality(string name)
         {