Conflicting module names for models silently generate invalid code

Describe the bug

I am generating a Python Client using the OpenAPI model of Netbox 3.6.9 (with a few plugins pre-installed).
This schema contains for example a model VLAN and a model Vlan.

However, in the generated client, only the model Vlan is generated, but the models/__init__.py still tries to import VLAN.

OpenAPI Spec File

https://gist.github.com/linkdd/3193453b38357d190545c7988cdac692

Desktop:

• OS: Debian 12
• Python Version: 3.12
• openapi-python-client version 0.21.6

Additional context

At $day_job, it was a blocking point, we had to remove temporarily the dependency to the generated client. I added a few tasks to my backlog in order to tackle this issue myself and ideally come up with a PR, but it won't be soon. Any help or information on how/where the model generation actually happens would be awesome and a huge time saver.

Führe die Generierung mit der verknüpften Netbox OpenAPI-Spezifikation erneut durch und untersuche die generierten Modelle sowie models/init.py. Verfolge den Pfad der Modellgenerierung, um zu sehen, wie VLAN und Vlan benannt werden, und füge anschließend Abdeckung hinzu, die zeigt, dass sowohl die generierten Modelle als auch ihre Importe weiterhin gültig sind.