Fix duplicate orderedItems in user archive's outbox.json (#31099)

spec/lib/activitypub/adapter_spec.rb

@@ -59,7 +59,7 @@ RSpec.describe ActivityPub::Adapter do
       let(:serializer_class) { TestWithBasicContextSerializer }
 
       it 'renders a basic @context' do
-        expect(subject).to include({ '@context' => 'https://www.w3.org/ns/activitystreams' })
+        expect(subject).to include({ '@context': 'https://www.w3.org/ns/activitystreams' })
       end
     end
 
@@ -67,7 +67,7 @@ RSpec.describe ActivityPub::Adapter do
       let(:serializer_class) { TestWithNamedContextSerializer }
 
       it 'renders a @context with both items' do
-        expect(subject).to include({ '@context' => ['https://www.w3.org/ns/activitystreams', 'https://w3id.org/security/v1'] })
+        expect(subject).to include({ '@context': ['https://www.w3.org/ns/activitystreams', 'https://w3id.org/security/v1'] })
       end
     end
 
@@ -75,7 +75,7 @@ RSpec.describe ActivityPub::Adapter do
       let(:serializer_class) { TestWithNestedNamedContextSerializer }
 
       it 'renders a @context with both items' do
-        expect(subject).to include({ '@context' => ['https://www.w3.org/ns/activitystreams', 'https://w3id.org/security/v1'] })
+        expect(subject).to include({ '@context': ['https://www.w3.org/ns/activitystreams', 'https://w3id.org/security/v1'] })
       end
     end
 
@@ -83,7 +83,7 @@ RSpec.describe ActivityPub::Adapter do
       let(:serializer_class) { TestWithContextExtensionSerializer }
 
       it 'renders a @context with the extension' do
-        expect(subject).to include({ '@context' => ['https://www.w3.org/ns/activitystreams', { 'sensitive' => 'as:sensitive' }] })
+        expect(subject).to include({ '@context': ['https://www.w3.org/ns/activitystreams', { 'sensitive' => 'as:sensitive' }] })
       end
     end
 
@@ -91,7 +91,7 @@ RSpec.describe ActivityPub::Adapter do
       let(:serializer_class) { TestWithNestedContextExtensionSerializer }
 
       it 'renders a @context with both extensions' do
-        expect(subject).to include({ '@context' => ['https://www.w3.org/ns/activitystreams', { 'manuallyApprovesFollowers' => 'as:manuallyApprovesFollowers', 'sensitive' => 'as:sensitive' }] })
+        expect(subject).to include({ '@context': ['https://www.w3.org/ns/activitystreams', { 'manuallyApprovesFollowers' => 'as:manuallyApprovesFollowers', 'sensitive' => 'as:sensitive' }] })
       end
     end
   end

spec/services/backup_service_spec.rb

@@ -62,6 +62,7 @@ RSpec.describe BackupService do
 
     aggregate_failures do
       expect(body.scan('@context').count).to eq 1
+      expect(body.scan('orderedItems').count).to eq 1
       expect(json['@context']).to_not be_nil
       expect(json['type']).to eq 'OrderedCollection'
       expect(json['totalItems']).to eq 4