Scott Taylor 0eb50f80b9 In wp_ajax_hidden_columns(), don't explode() on an empty string.
In `columns.hidden()`, which lives in `common.js`, don't return items with no `id`.

This was resulting in options like `manageedit-postcolumnshidden` containing a serialized array with random empty items.

Props afercia, wonderboymusic.
Fixes #32466.


git-svn-id: https://develop.svn.wordpress.org/trunk@32751 602fd350-edb4-49c9-b593-d223f7449a82
2015-06-13 14:59:40 +00:00
2015-03-13 18:11:33 +00:00
2015-06-06 19:57:54 +00:00
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