WordPress at a glance
filter is not described

wpsc_delete_related_pages_on_edit filter-hook . WPSCache 1.0

Usage

add_filter( 'wpsc_delete_related_pages_on_edit', 'filter_function_name_14' );
function filter_function_name_14( $all ){
	// filter...

	return $all;
}
$all
-

Where the hook is called

wp_cache_post_change()
wpsc_delete_related_pages_on_edit
wp-super-cache/wp-cache-phase2.php 3006
$all = apply_filters( 'wpsc_delete_related_pages_on_edit', $all ); // return 0 to disable deleting homepage and other pages.

Where in WP core the hook is used WP Super Cache

Usage not found.