add test for #394 + #395

tests/ImageSharp.Tests/Formats/Jpg/JpegDecoderTests.cs

@@ -42,6 +42,7 @@ namespace SixLabors.ImageSharp.Tests.Formats.Jpg
                 TestImages.Jpeg.Baseline.Jpeg444,
                 TestImages.Jpeg.Baseline.Bad.BadEOF,
                 TestImages.Jpeg.Baseline.Bad.ExifUndefType,
+                TestImages.Jpeg.Issues.MultiHuffmanBaseline394,
             };
 
         public static string[] ProgressiveTestJpegs =

tests/ImageSharp.Tests/TestImages.cs

@@ -123,6 +123,7 @@ namespace SixLabors.ImageSharp.Tests
                 public const string MissingFF00ProgressiveGirl159 = "Jpg/issues/Issue159-MissingFF00-Progressive-Girl.jpg";
                 public const string BadCoeffsProgressive178 = "Jpg/issues/Issue178-BadCoeffsProgressive-Lemon.jpg";
                 public const string BadZigZagProgressive385 = "Jpg/issues/Issue385-BadZigZag-Progressive.jpg";
+                public const string MultiHuffmanBaseline394 = "Jpg/issues/Issue394-MultiHuffmanBaseline-Speakers.jpg";
             }
 
             public static readonly string[] All = Baseline.All.Concat(Progressive.All).ToArray();

tests/Images/External

@@ -1 +1 @@
-Subproject commit ab7c90362a4881c790c6f264f400dcf4b4dea0ce
+Subproject commit dc5479d00b2312f691e6249b9f7765e2316d4a30

tests/Images/Input/Jpg/issues/Issue394-MultiHuffmanBaseline-Speakers.jpg

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8e90cf157d8e2599598c1bea1b8e2bf262651b004cc6261d87bbb49bd6131034
+size 257401