Fix: Set the ProcessedMail owner based on the rule owner in all cases

src/paperless_mail/mail.py

@@ -347,6 +347,7 @@ def error_callback(
         uid=message_uid,
         uid_validity=uid_validity,
         defaults={
+            "owner": rule.owner,
             "subject": message_subject[:256],
             "received": received,
             "status": "FAILED",
@@ -947,6 +948,7 @@ class MailAccountHandler(LoggingMixin):
             folder=rule.folder,
             uid_validity=self._current_uid_validity,
             defaults={
+                "owner": rule.owner,
                 "subject": message.subject[:256],
                 "received": make_aware(message.date)
                 if is_naive(message.date)

src/paperless_mail/tests/test_mail.py

@@ -384,8 +384,10 @@ class TestMail(
         )
 
         account = MailAccount.objects.create()
+        owner = UserFactory()
         rule = MailRule.objects.create(
             account=account,
+            owner=owner,
             consumption_scope=MailRule.ConsumptionScope.ATTACHMENTS_ONLY,
         )
 
@@ -400,6 +402,7 @@ class TestMail(
             folder=rule.folder,
         )
         self.assertEqual(processed.status, "PROCESSED_WO_CONSUMPTION")
+        self.assertEqual(processed.owner, owner)
 
         # Calling it again must not create a second row
         self.mail_account_handler._handle_message(message, rule)
@@ -1843,7 +1846,8 @@ class TestErrorCallback:
         THEN:
             - Only one ProcessedMail row is created for that mail
         """
-        rule = MailRuleFactory()
+        owner = UserFactory()
+        rule = MailRuleFactory(owner=owner)
         message_uid = "12345"
 
         for _ in range(2):
@@ -1866,6 +1870,7 @@ class TestErrorCallback:
         )
         assert processed_mails.count() == 1
         assert processed_mails.get().status == "FAILED"
+        assert processed_mails.get().owner == owner
 
 
 class TestManagementCommand(TestCase):