publish_post conflicts with save_post

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my plugin has a save_post hook used to save the custom fields. now I add a publish_slider hook used to change a checkbox’s status(slider is a custom post type). but it doesn’t work properly.

the save_post hook is as below

add_action('save_post', 'save_post_func', 10, 1);
function save_post_func($post_id) {
  if ( defined('DOING_AUTOSAVE') && DOING_AUTOSAVE )
    return;
  if ( isset($_POST['action']) && $_POST['action'] == 'inline-save' )
    return;
  ...
  if(isset($_POST[$key])){
    update_post_meta($post_id,$key,$_POST[$key]);
  }
  else{
    if($field['type']=='checkbox'){
    update_post_meta($post_id,$key,0);
  }
}

this would set a default 0 to the checkbox when I save a new post and didn’t set the checkbox, this is no problem.

and the publish_slider hook is as below

add_action('publish_slider', 'publish_slider_func', 10, 1);
function publish_slider_func($post_id) {
  ...
  update_post_meta($post_id, 'closeSlider', '1');
}

I hope when I publish the slider post, the closeSlider checkbox would be set to 1 automatically, but it wouldn’t.

if I delete the update_post_meta($post_id,$key,0); in the first function, then the publish hook works

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