I’m trying to replace “post_excerpt” and “post_content” with Piklist editor fields and everything seems to work fine with one exception: I can’t completly delete the content of either of these fields, I must have at least an empty space ” ” for the fields to save.

<?php
/*
Title: Content
Post Type: page, post, tour (a CPT)
*/

piklist('field', array(
    'type' => 'editor'
    ,'scope' => 'post'
    ,'field' => 'post_content'
    ,'label' => 'Content'
    ,'template' => 'field'
    ,'description' => 'This is a custom Content'
    ,'value' => ' '
    ,'options' => array(
      'wpautop' => true
      ,'media_buttons' => true
      ,'shortcode_buttons' => true
      ,'teeny' => false
      ,'dfw' => false
      ,'tinymce' => array(
        'resize' => false
        ,'wp_autoresize_on' => true
      )
      ,'quicktags' => true
      ,'drag_drop_upload' => true
    )
    ,'on_post_status' => array(
      'value' => 'lock'
    )
  ));

<?php
/*
Title: Excerpt
Post Type: post, page, tour (CPT)
*/

piklist('field', array(
    'type' => 'editor'
    ,'scope' => 'post'
    ,'field' => 'post_excerpt'
    ,'label' => 'Excerpt'
    ,'template' => 'field'
    ,'description' => 'This is a custom Excerpt'
    ,'options' => array(
      'wpautop' => true
      ,'media_buttons' => true
      ,'shortcode_buttons' => true
      ,'teeny' => false
      ,'dfw' => false
      ,'tinymce' => array(
        'resize' => false
        ,'wp_autoresize_on' => true
      )
      ,'quicktags' => true
      ,'drag_drop_upload' => true
    )
    ,'on_post_status' => array(
      'value' => 'lock'
    )
  ));

//functions.php
function my_remove_post_type_support()
{ 
    remove_post_type_support('post', 'excerpt');
    remove_post_type_support('post', 'editor');
    remove_post_type_support('post', 'custom-fields');
    
    remove_post_type_support('page', 'editor');
    remove_post_type_support('page', 'excerpt');
    remove_post_type_support('page', 'custom-fields'); 
}
add_action('init', 'my_remove_post_type_support',10);