From dde53340628fc34c7a6789fd007afd643be61219 Mon Sep 17 00:00:00 2001
From: Dirk Lemstra <dirk@git.imagemagick.org>
Date: Fri, 8 Dec 2017 16:53:04 +0100
Subject: [PATCH] Removed invalid check reported in issue #394.

---
 src/ImageSharp/Formats/Jpeg/GolangPort/OrigJpegDecoderCore.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ImageSharp/Formats/Jpeg/GolangPort/OrigJpegDecoderCore.cs b/src/ImageSharp/Formats/Jpeg/GolangPort/OrigJpegDecoderCore.cs
index e7ffaa9d1..61b18af55 100644
--- a/src/ImageSharp/Formats/Jpeg/GolangPort/OrigJpegDecoderCore.cs
+++ b/src/ImageSharp/Formats/Jpeg/GolangPort/OrigJpegDecoderCore.cs
@@ -688,7 +688,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.GolangPort
                 }
 
                 int th = this.Temp[0] & 0x0f;
-                if (th > OrigHuffmanTree.MaxTh || (!this.IsProgressive && (th > 1)))
+                if (th > OrigHuffmanTree.MaxTh)
                 {
                     throw new ImageFormatException("Bad Th value");
                 }