diff --git a/wp-includes/link-template.php b/wp-includes/link-template.php
index 8bed879cf4..baba9abf21 100644
--- a/wp-includes/link-template.php
+++ b/wp-includes/link-template.php
@@ -3604,6 +3604,10 @@ function get_avatar_data( $id_or_email, $args = null ) {
 	$email_hash = '';
 	$user = $email = false;
 
+	if ( is_object( $id_or_email ) && isset( $id_or_email->comment_ID ) ) {
+		$id_or_email = get_comment( $id_or_email );
+	}
+
 	// Process the user identifier.
 	if ( is_numeric( $id_or_email ) ) {
 		$user = get_user_by( 'id', absint( $id_or_email ) );
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 3c836ae1d6..3c8d0d3b4e 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.4-alpha-34159';
+$wp_version = '4.4-alpha-34160';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.