The .form-island wrapper existed only in the form page type (/form), so
on pages TYPO3 13 renders completely (e.g. the EP ambassador page) the
form's hx-target="closest .form-island" found nothing and submitting did
nothing. The island with its loading overlay now comes from the form
plugin's template (Render.html), on full pages and in /form alike; the
page type renders just the plugin again.
Co-Authored-By: Claude Opus 5.5 <[email protected]>