How do you update PineGrow when a change is made on the WordPress site Block?

After you send blocks made in Pine grow to a WordPress site and then a customer logs in and makes changes to the text or changes a photo.
Is there some way for Pinegrow to know that happened and download those changes into the local version so whenever then a larger change is made that is pushed up from the local version it does not override the other newer changes that were done on WordPress live site.
How is this handled?