Fixed #36260 -- Made bulk_create() work with DB-generated primary keys.

Co-authored-by: Simon Charette <charette.s@gmail.com>

tests/bulk_create/models.py

@@ -147,3 +147,7 @@ class RelatedModel(models.Model):
 class DbDefaultModel(models.Model):
     name = models.CharField(max_length=10)
     created_at = models.DateTimeField(db_default=Now())
+
+
+class DbDefaultPrimaryKey(models.Model):
+    id = models.DateTimeField(primary_key=True, db_default=Now())