Advanced Custom Fields Pro 6.4.0.1

New - Added more data to Google Maps field value including place_id, street_name, country and more.
Fix - Fixed bug in Gallery field incorrectly displaying .pdf attachments as icons.
Fix - Fixed bug in Checkbox field missing "selected" class after "Toggle All".
Dev - Added compatibility for Attachments in the Post Taxonomy location rule.
Dev - Added missing return statement from acf_get_form() function.
Dev - Added "google_map_result" JS filter.

• New - Added new choice "Add" to the User Form location rule.
• New - Optimized acf_form() logic when used in combination with acf_register_form().
• Fix - Fixed bug causing incorrect field order after sync.
• Fix - Fixed bug reverting the first field type to Text in Firefox version 69.0.1.
• Fix - Fixed bug causing tinymce issues when changing between block modes.
• Fix - Fixed bug preventing block registration when category does not exist.
• Fix - Fixed bug preventing block registration when no icon is declared.
• Dev - Added RegExp compatibility for innerBlocks.

New - Optimized Relationship field by delaying AJAX call until UI is visible.
Fix - Fixed bug incorrectly escaping HTML in the Link field title.
Fix - Fixed bug showing Discussion and Comment metaboxes for newly imported field groups.
Fix - Fixed PHP warning when loading meta from Post 0.
Dev - Ensure Checkbox field value is an array even when empty.
Dev - Added new ACF_MAJOR_VERSION constant.