Don't save screen options (table column) in post edit page and maybe other pages

[Juriy]

I fixed it so...
wp-includes/user.php
row 364

if ( $user->has_prop( $option ) )
	$result = $user->get( $option );
elseif ( $user->has_prop( $prefix . $option ) )
	$result = $user->get( $prefix . $option );
else
	$result = false;

----

	//todo bag user options delete this
//	if ( $user->has_prop( $prefix . $option ) ) // Blog specific
//		$result = $user->get( $prefix . $option );
//	elseif ( $user->has_prop( $option ) ) // User specific and cross-blog
//		$result = $user->get( $option );
//	else
//		$result = false;

[dd32]

If I understand correctly, you want the screen options to revert to defaults every time the current cookie is lost?

To me, that doesn't seem like a very good user experience, and it should show what the user had selected previously.

[Juriy]

My English is not very good, sorry.
I'll try to describe in more detaily.

I mean when I choose columns to be displayed in the menu options (page edit posts) but those changes are not saved. After refreshing the page options are set as default. As I understood WP function 'get_user_option returns wp_<options name> to me and in the moment the columns choosen by me in order to hide are saved in <options name> without the prefix wp_. in the table WP_User_meta. I have corrected the function as described above would it be right?

[dd32]

Ah my mistake.

Checking the non-prefixed option, like you're suggesting, isn't correct, and the way Core is currently doing it looks right to me.

First it checks if a prefixed item is set, and uses that if it is, if not, it then looks for a non-prefixed one and uses that.

The prefix is for Multisite & Shared user tables. Do you have a blank/empty wp_<option> set incorrectly which is overriding it?

[Juriy]

Yes, I have two options with wp_ and without wp_. (I do not understand why)
I use Wordpress as a single site. How do I fix it... Can I remove wp_manageedit-postcolumnshidden option without harm for Site?