WordPress site seems convinced that it’s still at its old URL

Silly mistake on my part,

At some point I defined my wp-content directories right in wp-config.

define( 'WP_CONTENT_DIR', '/home/user/public_html/site/subdirectory/wp-content' );
define( 'WP_CONTENT_URL', 'http://www.seocial.ly/site/subdirectory/wp-content' );

Completely overlooked this when editing my wp-config.