Gallery block: turn on auto-migration of v1 Gallery blocks to v2 format when edited#36191

glendaviesnz merged 30 commits into

trunkWordPress/gutenberg:trunkfrom

update/gallery-block-disable-v2-when-useBalanceTags-setWordPress/gutenberg:update/gallery-block-disable-v2-when-useBalanceTags-setCopy head branch name to clipboard