Bug: Optional lists in coverage produce nested lists

[Vegemash]

Description

A pydantic BaseModel field with the type list[int] | None will produce [[123]]

Fix incoming

MCVE

from pydantic import BaseModel
from polyfactory.factories.pydantic_factory import ModelFactory

class Model(BaseModel):
   optional_list: list[int] | None

list(ModelFactory._get_or_create_factory(Model).coverage())

Steps to reproduce

Run the above

Release Version

2.15

Platform

• [X] Linux
• [ ] Mac
• [ ] Windows
• [ ] Other (Please specify in the description above)

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[guacs]

@Vegemash thanks for reporting this and for the PR! I'm a bit swamped at the moment, but I'll take a look at the PR (if no one else has a chance) sometime this week.

[RLC92]

Seems to be same as: https://github.com/litestar-org/polyfactory/issues/559

Sorry for the duplicate.