Advanced Custom Fields Pro 6.2.9

* Fix - Added custom metabox location (acf_after_title) compatibility with Gutenberg.
* Fix - Added dynamic metabox check compatibility with Gutenberg.
* Fix - Fixed bug causing required date picker fields to prevent form submit.
* Fix - Fixed bug preventing multi-input values from saving correctly within media modals.
* Fix - Fixed bug where `acf_form()` redirects to an incorrect URL for sub-sites.
* Fix - Fixed bug where breaking out of a sub `have_rows()` loop could produce undesired results.
* Dev - Added filter 'acf/connect_attachment_to_post' to prevent connecting attachments to posts.
* Dev - Added JS filter 'google_map_autocomplete_args' to customize Google Maps autocomplete settings.

* Fix - Fixed vulnerability allowing author role to save unfiltered HTML values.
* Fix - Fixed all metaboxes appearing when editing a post in WP 5.0.
* i18n - Updated Polish translation thanks to Dariusz Zielonka.
* i18n - Updated Czech translation thanks to Veronika Hanzlíková.
* i18n - Update Turkish translation thanks to Emre Erkan.
* i18n - Updated Portuguese language thanks to Pedro Mendonça.

• Fix - Fixed various plugin update issues.
• Tweak - Added 'language' to Google Maps API url.
• Dev - Major improvements to the acf.models.Postbox model.
• Dev - Added JS filter 'check_screen_args'.
• Dev - Added JS action 'check_screen_complete'.
• Dev - Added action 'acf/options_page/submitbox_before_major_actions'.
• Dev - Added action 'acf/options_page/submitbox_major_actions'.
• i18n - Updated Portuguese language thanks to Pedro Mendonça