Fixed #24847 -- Prevented items set on a RequestContext from being lost.

Backport of 300e8baf9429dbf1c5dff478558d793638dc2f54 from master

1 files changed, 7 insertions, 1 deletions

diff --git a/django/template/context.py b/django/template/context.py
index af4fb8853b..e77866cc5d 100644
--- a/django/template/context.py
+++ b/django/template/context.py
@@ -219,7 +219,13 @@ class RequestContext(Context):
         self.request = request
         self._processors = () if processors is None else tuple(processors)
         self._processors_index = len(self.dicts)
-        self.update({})         # placeholder for context processors output
+
+        # placeholder for context processors output
+        self.update({})
+
+        # empty dict for any new modifications
+        # (so that context processors don't overwrite them)
+        self.update({})
 
     @contextmanager
     def bind_template(self, template):