Ticket #21513: ticket-21513.diff

wp-admin/includes/schema.php

@@ -896 +896 @@
                 // @todo - network admins should have a method of editing the network siteurl (used for cookie hash)
                 'siteurl' => get_option( 'siteurl' ) . '/',
                 'add_new_users' => '0',
-                'upload_space_check_disabled' => '0',
+                'upload_space_check_disabled' => is_multisite() ? get_site_option( 'upload_space_check_disabled' ) : '1',
                 'subdomain_install' => intval( $subdomain_install ),
                 'global_terms_enabled' => global_terms_enabled() ? '1' : '0',
                 'initial_db_version' => get_option( 'initial_db_version' ),