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function upgrade_530() {
	// The `admin_email_lifespan` option may have been set by an admin that just logged in,
	// saw the verification screen, clicked on a button there, and is now upgrading the db,
	// or by populate_options() that is called earlier in upgrade_all().
	// In the second case `admin_email_lifespan` should be reset so the verification screen
	// is shown next time an admin logs in.
	if ( function_exists( 'current_user_can' ) && ! current_user_can( 'manage_options' ) ) {
		update_option( 'admin_email_lifespan', 0 );
	}
}