From 8f2a4f87fb4bcd491c58752b73a4cbc09f04c7f4 Mon Sep 17 00:00:00 2001
From: Awais Qureshi <awais.qureshi@arbisoft.com>
Date: Fri, 10 Sep 2021 16:51:13 +0500
Subject: [PATCH] fix: RegexPattern, used by re_path(), no longer returns
 keyword arguments with None values to be passed to the view for the optional
 named groups that are missing.

BOM-2793
---
 cms/djangoapps/contentstore/views/item.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cms/djangoapps/contentstore/views/item.py b/cms/djangoapps/contentstore/views/item.py
index 8feaf96042..bc5cbb9158 100644
--- a/cms/djangoapps/contentstore/views/item.py
+++ b/cms/djangoapps/contentstore/views/item.py
@@ -114,7 +114,7 @@ def _is_library_component_limit_reached(usage_key):
 @require_http_methods(("DELETE", "GET", "PUT", "POST", "PATCH"))
 @login_required
 @expect_json
-def xblock_handler(request, usage_key_string):
+def xblock_handler(request, usage_key_string=None):
     """
     The restful handler for xblock requests.