Modal forms return 4294967296 as the selected index when no selection is made in a dropdown, instead of -1.

Partner Rank: Medium

Verification Builds: 1.21.22 / 27262419

Regression Builds: Unknown

Summary: Modal forms return 4294967296 as the selected index when no selection is made in a dropdown, instead of -1.

Affects currently Live Content: No

Impact: The dropdown returns an unexpected index value (4294967296) instead of -1 when no selection is made, leading to incorrect handling of unselected states in forms.

Repro Steps:

1. Create a modal form with a dropdown field.
2. Do not make a selection from the dropdown.
3. Submit the form and check the value returned for the dropdown.

Observed Results: The form returns 4294967296 as the selected index when no selection is made.

Expected Results: The form should return -1 as the index when no selection is made, following standard expectations.

Screenshots/Videos attached: No

Notes: