Django LazyObject are evaluated multiple times on exception

[tefra]

How do you use Sentry?

Sentry Saas (sentry.io)

Version

2.19.0

Steps to Reproduce

When utilizing Sentry within a Django project, the integration seems to cause the function _setup() of a LazyObject to run multiple times when an exception is thrown within the method.

import os
from logging import getLogger

import django
from django.utils.functional import LazyObject

os.environ.setdefault("DJANGO_SETTINGS_MODULE", "app.settings")
django.setup()

logger = getLogger(__name__)
count = 0

class MiLazy(LazyObject):
    def _setup(self):
        global count
        count += 1
        logger.info(count)
        raise ValueError(count)


foo = MiLazy()
len(foo)

It doesn't matter if I enable the DjangoIntegration or not in the settings, the issue goes away when I remove the sdk init completely.

LOGGING = {
    "version": 1,
    "disable_existing_loggers": False,
    "handlers": {
        "console": {
            "level": "INFO",
            "class": "logging.StreamHandler",
        },
    },
    "loggers": {
        "": {
            "handlers": ["console"],
            "level": "INFO",
        },
    },
}

sentry_sdk.init(
    dsn=os.getenv("SENTRY_DSN"),
    environment="Production",
    integrations=[DjangoIntegration()],
)

Expected Result

1
Traceback (most recent call last):
  File "/path/foo.py", line 22, in <module>
    len(foo)
  File "/path/.venv/lib/python3.10/site-packages/django/utils/functional.py", line 251, in inner
    self._setup()
  File "/path/foo.py", line 18, in _setup
    raise ValueError(count)
ValueError: 1

Actual Result

1
2
3
Traceback (most recent call last):
  File "/path/foo.py", line 22, in <module>
    len(foo)
  File "/path/.venv/lib/python3.10/site-packages/django/utils/functional.py", line 251, in inner
    self._setup()
  File "/path/foo.py", line 18, in _setup
    raise ValueError(count)
ValueError: 1