Fix local fields for ajax queries

acf_fix_local_fields.php

<?php

class acf_fix_local_fields
{
  public function __construct()
  {
		add_action('acf/include_fields', array($this, 'fix_local_fields'), 20 );
  }
  
	public function fix_local_fields()
	{
		$fields =& acf_local()->fields;
		$this->_add_sub_fields( $fields, $fields );
	}
	
	protected function _add_sub_fields( &$fields, &$all )
	{
		foreach( $fields as &$field ){
			if( !isset($all[$field['key']]) )
				$all[$field['key']] =& $field;
			
			if( isset($field['layouts'] ) )
				foreach( $field['layouts'] as &$layout )
					$this->_add_sub_fields( $layout['sub_fields'], $all );
			
			if( isset($field['sub_fields'] ) )
				$this->_add_sub_fields( $layout['sub_fields'], $all );
		}
	}
}

new acf_fix_local_fields();

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