FIO-10653: Fixed issue where the function declaration may mess up the evaluator if there is a return in the statement.

[travist]

Link to Jira Ticket

https://formio.atlassian.net/browse/FIO-10653

Description

For scripts written with the following, it will crash.

var show = true; show = false; return show

This is actually added in our Custom conditionals here https://github.com/formio/formio.js/blob/main/src/utils/utils.js#L294

Breaking Changes / Backwards Compatibility

None

Dependencies

None

How has this PR been tested?

Manual

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