Index: src/wp-admin/includes/schema.php
===================================================================
--- src/wp-admin/includes/schema.php	(revision 40512)
+++ src/wp-admin/includes/schema.php	(working copy)
@@ -551,6 +551,13 @@
 		if ( !empty($insert) )
 			$insert .= ', ';
 		$insert .= $wpdb->prepare( "(%s, %s, %s)", $option, $value, $autoload );
+
+		/** This filter is documented in wp-includes/option.php */
+		do_action( 'add_option', $option, $value );
+		/** This filter is documented in wp-includes/option.php */
+		do_action( "add_option_{$option}", $option, $value );
+		/** This filter is documented in wp-includes/option.php */
+		do_action( 'added_option', $option, $value );
 	}
 
 	if ( !empty($insert) )