WordPress at a glance
filter is not described

wp_post_revision_title_expanded filter-hook . WP 4.4.0

Filters the formatted author and date for a revision.

Usage

add_filter( 'wp_post_revision_title_expanded', 'filter_function_name_7146', 10, 3 );
function filter_function_name_7146( $revision_date_author, $revision, $link ){
	// filter...

	return $revision_date_author;
}
$revision_date_author(string)
The formatted string.
$revision(WP_Post)
The revision object.
$link(true/false)
Whether to link to the revisions page, as passed into wp_post_revision_title_expanded().

Where the hook is called

wp_post_revision_title_expanded()
wp-includes/post-template.php 1794
return apply_filters( 'wp_post_revision_title_expanded', $revision_date_author, $revision, $link );

Where the hook is used (in WP core)

Does not used.