diff --git a/wp-includes/version.php b/wp-includes/version.php
index 764cd15be2..b86b23813e 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.8-alpha-40047';
+$wp_version = '4.8-alpha-40048';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
diff --git a/wp-login.php b/wp-login.php
index 91da512264..03422b3d71 100644
--- a/wp-login.php
+++ b/wp-login.php
@@ -358,6 +358,8 @@ function retrieve_password() {
 
 	/**
 	 * Filters the message body of the password reset mail.
+	 * 
+	 * If the filtered message is empty, the password reset email will not be sent.
 	 *
 	 * @since 2.8.0
 	 * @since 4.1.0 Added `$user_login` and `$user_data` parameters.