fix(searchoption): default value not displayed when field is not set

[MyvTsv]

• I have performed a self-review of my code.
• I have added tests (when available) that prove my fix is effective or that my feature works.
• I have updated the CHANGELOG with a short functional description of the fix or new feature.
• This change requires a documentation update.

Description

• It fixes !38487
• When creating an object that has fields in a tab created by the field plugin, if the fields have a default value, they are not saved to the database. In this case, I check whether the row is saved to the database. If the value is not present, the default value is displayed.

Screenshots (if appropriate):

Before:

After:

[Rom1-B]

Seems OK.
Please have the customer approve it and we'll merge it afterwards.