Merge pull request #2478 from brandoncazander/version-3.1

Clone the versioning_scheme when necessary. Fixes #2477

rest_framework/request.py

@@ -109,6 +109,8 @@ def clone_request(request, method):
         ret.accepted_media_type = request.accepted_media_type
     if hasattr(request, 'version'):
         ret.version = request.version
+    if hasattr(request, 'versioning_scheme'):
+        ret.versioning_scheme = request.versioning_scheme
     return ret
 
 

tests/test_metadata.py

 from __future__ import unicode_literals
-from rest_framework import exceptions, serializers, status, views
+from rest_framework import exceptions, serializers, status, views, versioning
 from rest_framework.request import Request
 from rest_framework.renderers import BrowsableAPIRenderer
 from rest_framework.test import APIRequestFactory
@@ -183,3 +183,18 @@ class TestMetadata:
 
         view = ExampleView.as_view()
         view(request=request)
+
+    def test_bug_2477_clone_request(self):
+        class ExampleView(views.APIView):
+            renderer_classes = (BrowsableAPIRenderer,)
+
+            def post(self, request):
+                pass
+
+            def get_serializer(self):
+                assert hasattr(self.request, 'versioning_scheme')
+                return serializers.Serializer()
+
+        scheme = versioning.QueryParameterVersioning
+        view = ExampleView.as_view(versioning_class=scheme)
+        view(request=request)