I am using the Sydney-Theme and want to use coauthors_posts_links() like Getting coauthors plus to show coauthors on post This works.
I have a child theme because changes are away after a new theme version.
Is it usefull to use a child theme for this situation?
My problem is that the the call of the changed file is in functions.php via require get_template_directory() . ‘/inc/template-tags.php’;
How can I overwrite this call?