[6.0.x] Fixed #36847 -- Ensured auto_now_add fields are set on pre_save().

Regression in 94680437a45a71c70ca8bd2e68b72aa1e2eff337. Refs #27222.

During INSERT operations, `field.pre_save()` is called to prepare values
for db insertion. The `add` param must be `True` for `auto_now_add`
fields to be populated. The regression commit passed `False`, causing
`auto_now_add` fields to remain `None` when used by other fields, such
as `upload_to` callables.

Thanks Ran Benita for the report.

Backport of fe189dc43ab3eddbbceefb6834893b73ca60d5ed from main.

0 files changed, 0 insertions, 0 deletions