Fixed #15572 - include with "only" option discards context properties (such as autoescape)

Thanks to dfoerster for the report.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@15795 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/template/context.py

@@ -99,6 +99,14 @@ class Context(BaseContext):
         self.dicts.append(other_dict)
         return other_dict
 
+    def new(self, values=None):
+        """
+        Returns a new Context with the same 'autoescape' value etc, but with
+        only the values given in 'values' stored.
+        """
+        return self.__class__(dict_=values, autoescape=self.autoescape,
+                              current_app=self.current_app, use_l10n=self.use_l10n)
+
 class RenderContext(BaseContext):
     """
     A stack container for storing Template state.

django/template/loader_tags.py

@@ -136,7 +136,7 @@ class BaseIncludeNode(Node):
         values = dict([(name, var.resolve(context)) for name, var
                        in self.extra_context.iteritems()])
         if self.isolated_context:
-            return template.render(Context(values))
+            return template.render(context.new(values))
         context.update(values)
         output = template.render(context)
         context.pop()