Explicit check for leaf parent element presence for updates_for

[rickbenavidez]

In certain scenarios, the call to recursive updates associated with updates_for may fail if the leaf's parent Element is null.

This results in an error similar to the following:
Uncaught TypeError: e2.parentElement is null

To prevent the error we'll perform an explicit check on the presence of the parent element before attempting to call closest().

[leastbad]

Would you mind running yarn run prettier-standard:format and commiting again, please?

[rickbenavidez]

Thanks for the review @leastbad! Command run, commit amended.

[marcoroth]

Thanks @rickbenavidez! This looks good from my side! 👍🏼