Empty value when using conditional select

[AndreeaCristinaRadacina]

Description

A user reported that the select field doesn't display values, even if a default value is set.

This issue occurs when displaying select field conditionally.

Step-by-step reproduction instructions

1. Go to PPOM fields and create a new group
2. Add a select field (select 1) with options 1, 2, 3
3. Add a new select field (select 2) with options 1.1, 2.1, and 3.1 and use the condition to display it if Select 1 is 2, as below:

4. Add one more select field (select 3) with options 1.1, 1.2, and 1.3 without conditions 5. Attach the group to a product and check what happens when Select 1 is 2

Screenshots, screen recording, code snippet or Help Scout ticket

ref:
https://wordpress.org/support/topic/problem-with-a-selector/#post-17968999

Environment info

No response

Is the issue you are reporting a regression

No

[Soare-Robert-Daniel]

The HTML structure is present, but the select does not show the first option as the default option: