Bug Report

The following setup is used:
Modal that contains a Form with a long content. The content has one or more Dropdown elements.
When changing / selecting a dropdown value the modal content jumps to the top.

Steps to reproduce

1. Click button to open a modal.
2. Ensure that dropdown is below initial viewport (so that not entire modal is fully visible).
3. Scroll down to the dropdown.
4. Interact with dropdown (click and select any value).

Expected result

No scrolling or jumping happens.
Works fine with 2.8.8:
https://jsfiddle.net/zbvhwqm9/1/

Actual result

Modal instantly jumps/scrolls (no animation) to the top.

Testcase

https://jsfiddle.net/zbvhwqm9/ (2.9.1)
https://jsfiddle.net/fd34qy61/ (2.9.2)

Screenshot

Version

2.9.1