From c40ca3e764d367c29c0e851e9f8608c4e458f0e8 Mon Sep 17 00:00:00 2001
From: maybe-sybr <58414429+maybe-sybr@users.noreply.github.com>
Date: Wed, 16 Sep 2020 15:55:16 +1000
Subject: [PATCH] fixup! fix: Ensure group tasks are deeply deserialised

---
 celery/canvas.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/celery/canvas.py b/celery/canvas.py
index 27778189739..566535d3b41 100644
--- a/celery/canvas.py
+++ b/celery/canvas.py
@@ -1028,7 +1028,9 @@ class group(Signature):
 
     @classmethod
     def from_dict(cls, d, app=None):
-        tasks = [maybe_signature(task) for task in d["kwargs"]["tasks"]]
+        tasks = [
+            maybe_signature(task, app=app) for task in d["kwargs"]["tasks"]
+        ]
         return _upgrade(
             d, group(tasks, app=app, **d['options']),
         )