[admin] Avoid setting extra_content to mutable object

openwisp · May 3, 2017 · 298b2a2 · 298b2a2
1 parent 26f3eb6
commit 298b2a2
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/openwisp_controller/config/admin.py b/openwisp_controller/config/admin.py
@@ -50,8 +50,8 @@ def get_extra_context(self, pk=None):
         ctx.update({'default_template_urls': self._get_default_template_urls()})
         return ctx
 
-    def add_view(self, request, form_url='', extra_context={}):
-        extra_context.update(self.get_extra_context())
+    def add_view(self, request, form_url='', extra_context=None):
+        extra_context = self.get_extra_context()
         return super(BaseConfigAdmin, self).add_view(request, form_url, extra_context)