Fix issue with incorrect serialization type

Turnerj · Turnerj · commit 0a08a75a99ac · 2019-12-15T15:27:36.000+10:30
When passing `this`, it resolves to type `Thing` generically and the serializer then only looks for properties on `Thing`. To work around this, we get the runtime type via `GetType()` and pass that in.
diff --git a/Source/Schema.NET/Thing.Partial.cs b/Source/Schema.NET/Thing.Partial.cs
@@ -69,7 +69,7 @@ static Thing()
         /// A <see cref="string" /> that represents the JSON-LD representation of this instance.
         /// </returns>
         public string ToString(JsonSerializerOptions serializerSettings) =>
-            RemoveAllButRootContext(JsonSerializer.Serialize(this, serializerSettings));
+            RemoveAllButRootContext(JsonSerializer.Serialize(this, this.GetType(), serializerSettings));
 
         private static string RemoveAllButRootContext(string json)
         {

Original file line number	Diff line number	Diff line change
`@@ -69,7 +69,7 @@ static Thing()`
`69`	`69`	`/// A <see cref="string" /> that represents the JSON-LD representation of this instance.`
`70`	`70`	`/// </returns>`
`71`	`71`	`public string ToString(JsonSerializerOptions serializerSettings) =>`
`72`		`- RemoveAllButRootContext(JsonSerializer.Serialize(this, serializerSettings));`
	`72`	`+ RemoveAllButRootContext(JsonSerializer.Serialize(this, this.GetType(), serializerSettings));`
`73`	`73`
`74`	`74`	`private static string RemoveAllButRootContext(string json)`
`75`	`75`	`{`