get_site_option should use wpdb->get_row

[laceous]

get_option uses the following code when pulling data from the database:

$row = $wpdb->get_row( $wpdb->prepare( "SELECT option_value FROM $wpdb->options WHERE option_name = '%s' LIMIT 1", $option ) );
// Has to be get_row instead of get_var because of funkiness with 0, false, null values
if ( is_object( $row ) ) {

get_site_option uses get_var directly which leads to the funkiness that get_option tries to avoid:

$value = $wpdb->get_var( $wpdb->prepare("SELECT meta_value FROM $wpdb->sitemeta WHERE meta_key = %s AND site_id = %d", $option, $wpdb->siteid ) );
if ( is_null($value) )
  $value = $default;

get_site_option should use get_row instead of get_var

(This was tested with the latest nightly build)

[laceous]

change get_var to get_row

[technosailor]

Still applies cleanly.

[nacin]

(In [14410]) Use get_row instead of get_var in get_site_option, aligning it with get_option, due to funkiness with 0/false/null. fixes #13043. props laceous.