From reading the community post, it was stated (concern in BOLD):
This article provides customization to detail_in.htmpl for refreshing end user location and phone (as displayed on the form) when the end user changes BEFORE saving the change. The code works, but I am not crazy about it. I am hoping that someone can find a more elegant way to implement the same. I have only implemented and did limited testing in development, so the code has not been tested in the real world environment.
Unfortunately, Support is limited in the amount of troubleshooting that can be applied here, especially on a code that had been given limited tested and QA.