reset MUST_NOTIFY on request start (#29240)

It breaks test tests_hobo/test_manager.py:test_unlogged_access which do
not expect any DB access but the flag seems to still be True from a
previous test.

hobo/deploy/signals.py

@@ -20,7 +20,7 @@ from celery import Celery
 from kombu.common import Broadcast
 
 from django.conf import settings
-from django.core.signals import request_finished
+from django.core.signals import request_finished, request_started
 from django.db.models.signals import post_save
 from django.dispatch import receiver
 
@@ -43,6 +43,11 @@ def post_environment_save(sender, instance, **kwargs):
     tls.MUST_NOTIFY = True
 
 
+@receiver(request_started)
+def reset_must_notify(sender, **kwargs):
+    tls.MUST_NOTIFY = False
+
+
 @receiver(request_finished)
 def notify_agents(sender, **kwargs):
     if not tls.MUST_NOTIFY:

tests_schemas/example_env.json

@@ -224,4 +224,4 @@
         "theme": "publik",
         "theme_color": "#E80E89"
     }
-}
+}