Fixed: Regular Anime being caught in Chinese parser rules

closes #4257

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

@@ -79,5 +79,18 @@ namespace NzbDrone.Core.Test.ParserTests
             result.SpecialAbsoluteEpisodeNumbers.Should().BeEmpty();
             result.FullSeason.Should().BeFalse();
         }
+
+        [TestCase("[BeanSub][Nanatsu_no_Taizai_Fundo_no_Shinpan][01][GB][1080P][x264_AAC]", "Nanatsu no Taizai Fundo no Shinpan", "BeanSub", 1)]
+        public void should_parse_false_positive_chinese_anime_releases(string postTitle, string title, string subgroup, int absoluteEpisodeNumber)
+        {
+            postTitle = XmlCleaner.ReplaceUnicode(postTitle);
+
+            var result = Parser.Parser.ParseTitle(postTitle);
+            result.Should().NotBeNull();
+            result.ReleaseGroup.Should().Be(subgroup);
+            result.AbsoluteEpisodeNumbers.Single().Should().Be(absoluteEpisodeNumber);
+            result.SeriesTitle.Should().Be(title);
+            result.FullSeason.Should().BeFalse();
+        }
     }
 }

src/NzbDrone.Core/Parser/Parser.cs

@@ -27,7 +27,7 @@ namespace NzbDrone.Core.Parser
                 new RegexReplace(@"^\[(?<subgroup>[^\]]*?(?:LoliHouse|ZERO|Lilith-Raws)[^\]]*?)\](?<title>[^\[\]]+?)(?: - (?<episode>[0-9-]+)\s*|\[第?(?<episode>[0-9]+(?:-[0-9]+)?)话?(?:END|完)?\])\[", "[${subgroup}][${title}][${episode}][", RegexOptions.Compiled),
                 
                 // Most Chinese anime releases contain additional brackets/separators for chinese and non-chinese titles, remove junk and replace with normal anime pattern
-                new RegexReplace(@"^\[(?<subgroup>[^\]]+)\](?:\s?★[^\[ -]+\s?)?\[(?:(?<chinesetitle>[^\]]+?)(?:\]\[|[_/·]\s*))?(?<title>[^\]]+?)\](?:\[\d{4}\])?\[第?(?<episode>[0-9]+(?:-[0-9]+)?)话?(?:END|完)?\]", "[${subgroup}] ${title} - ${episode} ", RegexOptions.Compiled)
+                new RegexReplace(@"^\[(?<subgroup>[^\]]+)\](?:\s?★[^\[ -]+\s?)?\[(?:(?<chinesetitle>[^\]]*?[\u4E00-\u9FCC][^\]]*?)(?:\]\[|\s*[_/·]\s*))?(?<title>[^\]]+?)\](?:\[\d{4}\])?\[第?(?<episode>[0-9]+(?:-[0-9]+)?)话?(?:END|完)?\]", "[${subgroup}] ${title} - ${episode} ", RegexOptions.Compiled)
             };
 
         private static readonly Regex[] ReportTitleRegex = new[]