Error when querying photos edited since a DST change

L'Enibar fait régulièrement des requètes pour mettre à jour les photos de profil, en spécifiant la dernière heure de mise à jour.

La requète crashe lorsque cette dernière mise à jour est un horaire ambigu (qui a existé deux fois dans la journée par exemple).

Traceback:

AmbiguousTimeError at /enibar/photos
2020-10-25 02:00:01

Request Method: GET
Request URL: https://enib.net/enibar/photos?last_updated=2020-10-25T02%3A00%3A01
Django Version: 2.2.15
Python Executable: /usr/bin/uwsgi
Python Version: 3.8.6
Python Path: ['.', '', '/home/sde/prod/.venv/lib/python38.zip', '/home/sde/prod/.venv/lib/python3.8', '/home/sde/prod/.venv/lib/python3.8/lib-dynload', '/us
r/lib64/python3.8', '/usr/lib/python3.8', '/home/sde/prod/.venv/lib/python3.8/site-packages']
Server time: dim, 25 Oct 2020 02:33:29 +0200
Installed Applications:
('django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'core',
 'notifications',
 'accounts',
 'poll',
 'events',
 'webmail',
 'bde',
 'carshare',
 'news',
 'help',
 'permissions',
 'photo',
 'enibar',
 'quotes',
 'asso',
 'partnerships',
 'boutique',
 'lydia')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware',
 'django.middleware.security.SecurityMiddleware',
 'notifications.middleware.ReadOnVisit')


Traceback:

File "/home/sde/prod/.venv/lib/python3.8/site-packages/django/core/handlers/exception.py" in inner
  34.             response = get_response(request)

File "/home/sde/prod/.venv/lib/python3.8/site-packages/django/core/handlers/base.py" in _get_response
  115.                 response = self.process_exception_by_middleware(e, request)

File "/home/sde/prod/.venv/lib/python3.8/site-packages/django/core/handlers/base.py" in _get_response
  113.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "./enibar/views.py" in get_photo_paths
  133.         users = User.objects.filter(

File "/home/sde/prod/.venv/lib/python3.8/site-packages/django/db/models/manager.py" in manager_method
  82.                 return getattr(self.get_queryset(), name)(*args, **kwargs)

File "/home/sde/prod/.venv/lib/python3.8/site-packages/django/db/models/query.py" in filter
  892.         return self._filter_or_exclude(False, *args, **kwargs)

File "/home/sde/prod/.venv/lib/python3.8/site-packages/django/db/models/query.py" in _filter_or_exclude
  910.             clone.query.add_q(Q(*args, **kwargs))

File "/home/sde/prod/.venv/lib/python3.8/site-packages/django/db/models/sql/query.py" in add_q
  1290.         clause, _ = self._add_q(q_object, self.used_aliases)

File "/home/sde/prod/.venv/lib/python3.8/site-packages/django/db/models/sql/query.py" in _add_q
  1315.                 child_clause, needed_inner = self.build_filter(

File "/home/sde/prod/.venv/lib/python3.8/site-packages/django/db/models/sql/query.py" in build_filter
  1251.         condition = self.build_lookup(lookups, col, value)

File "/home/sde/prod/.venv/lib/python3.8/site-packages/django/db/models/sql/query.py" in build_lookup
  1116.         lookup = lookup_class(lhs, rhs)

File "/home/sde/prod/.venv/lib/python3.8/site-packages/django/db/models/lookups.py" in __init__
  20.         self.rhs = self.get_prep_lookup()

File "/home/sde/prod/.venv/lib/python3.8/site-packages/django/db/models/lookups.py" in get_prep_lookup
  70.             return self.lhs.output_field.get_prep_value(self.rhs)

File "/home/sde/prod/.venv/lib/python3.8/site-packages/django/db/models/fields/__init__.py" in get_prep_value
  1429.             value = timezone.make_aware(value, default_timezone)

File "/home/sde/prod/.venv/lib/python3.8/site-packages/django/utils/timezone.py" in make_aware
  270.         return timezone.localize(value, is_dst=is_dst)

File "/home/sde/prod/.venv/lib/python3.8/site-packages/pytz/tzinfo.py" in localize
  363.             raise AmbiguousTimeError(dt)

Exception Type: AmbiguousTimeError at /enibar/photos
Exception Value: 2020-10-25 02:00:01
Request information:
USER: AnonymousUser

GET:
last_updated = '2020-10-25T02:00:01'