[Bug]: Unsupported operand type in 371c4b9

[masterbelch]

Is there an existing issue for this?

• [X] I have searched the existing issues and checked the recent builds/commits

What happened?

Executing Webui-user.bat after 371c4b9 causes Webui to terminate with below message:

Traceback (most recent call last):
  File "C:\stable-diffusion-webui\launch.py", line 252, in <module>
    start()
  File "C:\stable-diffusion-webui\launch.py", line 247, in start
    webui.webui()
  File "C:\stable-diffusion-webui\webui.py", line 153, in webui
    create_api(app)
  File "C:\stable-diffusion-webui\webui.py", line 97, in create_api
    from modules.api.api import Api
  File "C:\stable-diffusion-webui\modules\api\api.py", line 9, in <module>
    from modules.api.models import *
  File "EC:\stable-diffusion-webui\modules\api\models.py", line 199, in <module>
    class UpscalerItem(BaseModel):
  File "C:\stable-diffusion-webui\modules\api\models.py", line 201, in UpscalerItem
    model_name: str | None = Field(title="Model Name")
TypeError: unsupported operand type(s) for |: 'type' and 'NoneType'

Steps to reproduce the problem

1. Git pull to latest branch
2. Execute Webui-user.bat
3. Webui-user.bat completes up until "Running on local URL..." and then terminates with error message

What should have happened?

Webui should launch without error

Commit where the problem happens

371c4b990eca3f2418e62ce8c852e9a52d39e445

What platforms do you use to access UI ?

Windows

What browsers do you use to access the UI ?

Google Chrome

Command Line Arguments

--gradio-img2img-tool color-sketch --precision full --no-half --no-half-vae --deepdanbooru --api

Additional information, context and logs

Rolling back to previous immediate commit (f674c488d9701e577e2aaf25e331fb44ada4f1ef) launches without issue

[aria1th]

Can you specify python version you're using? This is option from python 3.10

[masterbelch]

Can you specify python version you're using? This is option from python 3.10

Python 3.9.5

[aliencaocao]

https://github.com/AUTOMATIC1111/stable-diffusion-webui/pull/4311 Made a PR to fix