Index: wp-includes/ms-blogs.php
===================================================================
--- wp-includes/ms-blogs.php	(revision 23583)
+++ wp-includes/ms-blogs.php	(working copy)
@@ -252,6 +252,11 @@
 function refresh_blog_details( $blog_id ) {
 	$blog_id = (int) $blog_id;
 	$details = get_blog_details( $blog_id, false );
+	
+	if ( !$details ) {
+		wp_cache_delete( $blog_id, 'blog-details' );
+		$details = get_blog_details( $blog_id, false );
+	}
 
 	clean_blog_cache( $details );