diff --git a/wp-includes/ms-settings.php b/wp-includes/ms-settings.php
index a490c22248..aad6269f3f 100644
--- a/wp-includes/ms-settings.php
+++ b/wp-includes/ms-settings.php
@@ -135,10 +135,11 @@ if ( !isset( $current_site ) || !isset( $current_blog ) ) {
 		ms_not_installed( $domain, $path );
 	}
 
-	// @todo Investigate when exactly this can occur.
+	// During activation of a new subdomain, the requested site does not yet exist.
 	if ( empty( $current_blog ) && wp_installing() ) {
 		$current_blog = new stdClass;
 		$current_blog->blog_id = $blog_id = 1;
+		$current_blog->public = 1;
 	}
 
 	// No site has been found, bail.
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 4b6108c6df..a06baa5a29 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.5-alpha-35781';
+$wp_version = '4.5-alpha-35782';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.