Return the count of sites selected in the UI. Since this overrides count the number of sites can also be retrieved by calling count directly on the field object.
Note: This method is intended for internal use and should not be called directly.
Masterpress 1.3.6 is a compatibility release. It resolves an edge case with shared fieldsets not working for MySQL 8 when the fieldset is limited to more than 1 post type or taxonomy or excluding any post types or taxonomies.
MasterPress requires a minimum of WordPress version 4.9, MySQL 5.6, and PHP version 5.6.20.
We also recommend that PHP is configured to use a memory limit of 64MB per request (128MB may be required for sites with higher complexity).
This plug-in is not compatible with the WordPress.com hosted service.
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