FIO-10408: Fixed issues with the nested field validations.

[travist]

Link to Jira Ticket

https://formio.atlassian.net/browse/FIO-10408

Description

There is an issue where the iteration through nested components was being blocked if the row for that component is undefined. This is a problem, especially if there are "required" fields that need that data and the data is not getting validated correctly. The only case where this is not the case is if the component is a nested array (datagrid and editgrid) where we should be skipping the processing of the children since this is not needed for nested arrays that are empty.

Breaking Changes / Backwards Compatibility

Yes

Dependencies

None

How has this PR been tested?

Manual, and ran existing automated tests.

Checklist:

• I have completed the above PR template
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (if applicable)
• My changes generate no new warnings
• My changes include tests that prove my fix is effective (or that my feature works as intended)
• New and existing unit/integration tests pass locally with my changes
• Any dependent changes have corresponding PRs that are listed above