Arrow key based selection does not move into the next option group.

[prathamesh-gharat]

Describe the bug
As the title says, the arrow key based selection does not move into the next option group, rather it just loops the selection within the items of the first option group.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'default--grouped demo link'
2. Click on 'Dropdown' to open it
3. Press down arrow key repeatedly until you see that the selection does not move into the next option group and just loops between the items of the first option group.

Expected behavior
The arrow key based navigation should allow to select items in groups after the first one.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: Windows
• Browser Chrome
• Version: 120.0.6099.130 (Official Build) (64-bit) (cohort: Stable)