Use constructor instead of property to get the default decoder options.

src/ImageSharp.Formats.Gif/GifDecoderCore.cs

@@ -73,7 +73,7 @@ namespace ImageSharp.Formats
         /// <param name="options">The decoder options.</param>
         public GifDecoderCore(IDecoderOptions options)
         {
-            this.options = options ?? DecoderOptions.Default;
+            this.options = options ?? new DecoderOptions();
         }
 
         /// <summary>

src/ImageSharp.Formats.Jpeg/JpegDecoderCore.cs

@@ -93,7 +93,7 @@ namespace ImageSharp.Formats
         /// <param name="options">The decoder options.</param>
         public JpegDecoderCore(IDecoderOptions options)
         {
-            this.options = options ?? DecoderOptions.Default;
+            this.options = options ?? new DecoderOptions();
             this.HuffmanTrees = HuffmanTree.CreateHuffmanTrees();
             this.QuantizationTables = new Block8x8F[MaxTq + 1];
             this.Temp = new byte[2 * Block8x8F.ScalarCount];

src/ImageSharp/Formats/DecoderOptions.cs

@@ -11,22 +11,36 @@ namespace ImageSharp
     public class DecoderOptions : IDecoderOptions
     {
         /// <summary>
-        /// Gets the default decoder options
+        /// Initializes a new instance of the <see cref="DecoderOptions"/> class.
         /// </summary>
-        public static DecoderOptions Default
+        public DecoderOptions()
         {
-            get
+            this.InitializeWithDefaults();
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DecoderOptions"/> class.
+        /// </summary>
+        /// <param name="options">The decoder options</param>
+        protected DecoderOptions(IDecoderOptions options)
+        {
+            if (options == null)
             {
-                return new DecoderOptions()
-                {
-                    IgnoreMetadata = false
-                };
+                this.InitializeWithDefaults();
+                return;
             }
+
+            this.IgnoreMetadata = options.IgnoreMetadata;
         }
 
         /// <summary>
         /// Gets or sets a value indicating whether the metadata should be ignored when the image is being decoded.
         /// </summary>
         public bool IgnoreMetadata { get; set; }
+
+        private void InitializeWithDefaults()
+        {
+            this.IgnoreMetadata = false;
+        }
     }
 }