fix: add default value for type

Gulpfile.js

@@ -165,6 +165,7 @@ async function jsonschema() {
       } else {
         schema.properties.type.enum = [schema.title]
       }
+      schema.properties.type.default = schema.title
     }
 
     // Remove unnecessary processing keywords

tests/util.test.ts

@@ -280,6 +280,46 @@ describe('mutate', () => {
     })
   })
 
+  it('will correct nested nodes including adding type', () => {
+    const article = mutate({
+      authors: [{
+        givenNames: 'Joe'
+      }, {
+        givenNames: ['Jane', 'Jill'],
+        familyNames: 'Jones'
+      }]
+    }, 'Article')
+
+    expect(article.authors[0].type).toEqual('Person')
+    expect(cast(article.authors[0], 'Person').givenNames).toEqual(['Joe'])
+    expect(article.authors[1].type).toEqual('Person')
+    expect(cast(article.authors[1], 'Person').familyNames).toEqual(['Jones'])
+  })  
+
+  it('currently has a bug with arrays using anyOf', () => {
+    const article = mutate({
+      authors: [{
+        givenNames: ['Joe']
+      }, {
+        // Even though we explicitly state that this is an
+        // `Organization`, `legalName` gets dropped because
+        // Ajv sees it as an additional property for `Person`
+        // This is a bug in Ajv.
+        type: 'Organization',
+        name: 'Example Uni',
+        legalName: 'Example University Inc.'
+      }]
+    }, 'Article')
+
+    expect(article.authors[0].type).toEqual('Person')
+
+    expect(article.authors[1].type).toEqual('Organization')
+    expect(article.authors[1].name).toEqual('Example Uni')
+    // @ts-ignore
+    expect(article.authors[1].legalName).toBeUndefined()
+    expect(cast(article.authors[1], 'Organization').legalName).toBeUndefined()
+  })  
+
   it('throws an error if unable to coerce data, or data is otherwise invalid', () => {
     expect(() =>
       mutate(