[Bug? or Feature?] oneOf with shared properties fails validation

spec/data/normal.yml

@@ -258,6 +258,28 @@ paths:
                     mapping:
                       obj1: '#/components/schemas/one_of_object1'
                       obj2: '#/components/schemas/one_of_object2'
+                one_of_within_properties:
+                  additionalProperties: false
+                  required:
+                    - shared_property
+                    - sample_one_of
+                  properties:
+                    shared_property:
+                      type: string
+                    sample_one_of:
+                      oneOf:
+                        - $ref: '#/components/schemas/one_of_object1'
+                        - $ref: '#/components/schemas/one_of_object2'
+                one_of_alongside_properties:
+                  additionalProperties: false
+                  required:
+                    - shared_property
+                  properties:
+                    shared_property:
+                      type: string
+                  oneOf:
+                    - $ref: '#/components/schemas/one_of_object1'
+                    - $ref: '#/components/schemas/one_of_object2'
                 object_1:
                   type: object
                   properties:

spec/openapi_parser/schema_validator_spec.rb

@@ -430,6 +430,43 @@
 
         it { expect(subject).not_to eq nil }
       end
+
+      context 'within properties' do
+        subject { request_operation.validate_request_body(content_type, { 'one_of_within_properties' => params }) }
+
+        let(:correct_params) do
+          {
+            'shared_property' => 'shared_property',
+            'name' => 'name',
+            'integer_1' => 42,
+          }
+        end
+        let(:params) { correct_params }
+
+        it { expect(subject).not_to eq nil }
+      end
+
+      context 'alongside properties' do
+        subject { request_operation.validate_request_body(content_type, { 'one_of_alongside_properties' => params }) }
+
+        let(:correct_params) do
+          {
+            'shared_property' => 'shared_property',
+            'name' => 'name',
+            'integer_1' => 42,
+          }
+        end
+        let(:params) { correct_params }
+
+        # TODO: this is failing, but it should not
+        # it { expect(subject).not_to eq nil }
+        it do
+          expect { subject }.to raise_error do |e|
+            expect(e.kind_of?(OpenAPIParser::NotOneOf)).to eq true
+            expect(e.message.include?("isn't one of")).to eq true
+          end
+        end
+      end
     end
 
     it 'unknown param' do