Dropdown changes in Dash 2.17 causing page loading issues in Dash docs

[LiamConnors]

Our docs tests test different paths:

https://github.com/plotly/ddk-dash-docs/blob/main/tests/integration/test_bad_paths.py

With Dash 2.17, some of these tests fail because the page never loads

The page ends up stuck in a state like this

Seems to be happening on page where the dropdown is updated based on the URL and vice versa. Seems to work without this change: #2816

To recreate:

Run the /ddk-dash-docs tests using Dash 2.17