Restore: Sync Gutenberg @ 7a11a53377a95cba4d3786d71cadd4c2f0c5ac52

See changelog in b63a84b4370b53ed61ce11234762d1c17129286b

> Gutenberg ref update.
> Developed in https://github.com/WordPress/wordpress-develop/pull/10968.
>
> Props ellatrix, adamsilverstein, youknowriad.

git-svn-id: https://develop.svn.wordpress.org/branches/fixes-64393-restore-version-history@62123 602fd350-edb4-49c9-b593-d223f7449a82