Formatting lost on reply to PM

Found the issue and solution:
Open /inc/send-page.php
Search for:
$subject = esc_sql( $subject );
$content = esc_sql( $content );
$recipient = array_map( ‘esc_sql’, $recipient );

And replace with:
$subject = addslashes( $subject );
$content = addslashes( $content );
$recipient = array_map( ‘addslashes’, $recipient );