Fix non-required schema references (#38)

- `.reference(required: false)` now works as expected

Author: tib

README.md

@@ -3,9 +3,9 @@
 The FeatherOpenAPI library makes it easy to define OpenAPI specifications using Swift in a type-safe way.
 
 [
-    ![Release: 1.0.0-beta.3](https://img.shields.io/badge/Release-1%2E0%2E0--beta%2E3-F05138)
+    ![Release: 1.0.0-beta.4](https://img.shields.io/badge/Release-1%2E0%2E0--beta%2E4-F05138)
 ](
-    https://github.com/feather-framework/feather-openapi/releases/tag/1.0.0-beta.3
+    https://github.com/feather-framework/feather-openapi/releases/tag/1.0.0-beta.4
 )
 
 ## Features
@@ -34,7 +34,7 @@ The FeatherOpenAPI library makes it easy to define OpenAPI specifications using
 Use Swift Package Manager; add the dependency to your `Package.swift` file:
 
 ```swift
-.package(url: "https://github.com/feather-framework/feather-openapi", exact: "1.0.0-beta.3"),
+.package(url: "https://github.com/feather-framework/feather-openapi", exact: "1.0.0-beta.4"),
 ```
 
 Then add `FeatherOpenAPI` to your target dependencies:

Sources/FeatherOpenAPI/Schema/Abstraction/SchemaRepresentable.swift

@@ -30,7 +30,7 @@ extension SchemaRepresentable {
     public func reference(
         required: Bool = true
     ) -> SchemaReference<Self> {
-        .init(self)
+        .init(self, required: required)
     }
 
     /// Default deprecated flag is `nil`.

Tests/FeatherOpenAPITests/TestObjects.swift

@@ -73,8 +73,8 @@ struct TodoDetailObject: ObjectSchemaRepresentable {
         [
             "id": TodoIDField().reference(),
             "title": TodoTitleField(),
-            "isComplete": TodoIsCompleteField(),
-                //            "unsafe": UnsafeSchemaReference("asdf"),
+            "isComplete": TodoIsCompleteField().reference(required: false),
+            //            "unsafe": UnsafeSchemaReference("asdf"),
         ]
     }