From ef6699be4a9d33ad64e26bd067914bde24b5b575 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20P=C3=A9ters?= <fpeters@entrouvert.com>
Date: Tue, 2 Jun 2020 09:13:28 +0200
Subject: [PATCH] workflows: get list of manual actions in case of undefined
 roles (bis) (#43515)

---
 wcs/workflows.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wcs/workflows.py b/wcs/workflows.py
index ef97419e3..5f3e4ca7f 100644
--- a/wcs/workflows.py
+++ b/wcs/workflows.py
@@ -1672,7 +1672,7 @@ class WorkflowStatus(object):
                 continue
             if not action.identifier:
                 continue
-            roles = action.by
+            roles = action.by or []
             functions = [x for x in roles if x in (self.parent.roles or [])]
             roles = [x for x in roles if x not in (self.parent.roles or [])]
             if functions or roles: