Since 1.1.0-preview2 UI dropdowns only remain open while holding the gamepad button

Changed behavior:
1.1.0-preview1: Press gamepad button to open a dropdowns, release button and make your dropdown selection, press button again to confirm.

This is as desired. Here the regression:

1.1.0-preview2 & *preview3: Hold gamepad button to open a dropdowns make your dropdown selection, release button immediately closes the dropdown. So you need to keep holding while selecting.

The preview1 behavior is preferred. This seems to be related to the changelog change (https://docs.unity3d.com/Packages/c...elog/CHANGELOG.html#110-preview2---2020-10-23)

This is a bug to us. Was this changed intentionally?

EDIT: Seems to be because of our own custom Dropdown extension code.