fix: use non_atomic_requests decorator in handle_block view (#34020)

cms/djangoapps/contentstore/views/block.py

@@ -6,6 +6,7 @@ from functools import partial
 
 from django.contrib.auth.decorators import login_required
 from django.core.exceptions import PermissionDenied
+from django.db import transaction
 from django.http import Http404, HttpResponse
 from django.utils.translation import gettext as _
 from django.views.decorators.http import require_http_methods
@@ -74,6 +75,12 @@ NEVER = lambda x: False
 ALWAYS = lambda x: True
 
 
+# Disable atomic requests so transactions made during the request commit immediately instead of waiting for the end of
+# the request transaction. This is necessary so the async tasks launched by the current process can see the changes made
+# during the request. One example is the async tasks launched when courses are published before the request
+# ends, which end up reading from an outdated state of the database. For more information see the discussion in the
+# following PR: https://github.com/openedx/edx-platform/pull/34020
+@transaction.non_atomic_requests
 @require_http_methods(("DELETE", "GET", "PUT", "POST", "PATCH"))
 @login_required
 @expect_json