Link to Jira Ticket

closely related, but not directly responsible for the initial bug. It was discovered while working on:

https://formio.atlassian.net/browse/FIO-9499

Description

What changed?

Updated check from typeof ref === NodeList to ref instanceof NodeList since the former returns 'object' and not what we're checking for 'NodeList'.

Why have you chosen this solution?

So that the result of this conditional is what we're expecting.

Breaking Changes / Backwards Compatibility

n/a

Dependencies

n/a

How has this PR been tested?

Manual testing + automated test in formio repo formio/formio#1885.

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