Index: trunk/src/wp-includes/class-wp-scripts.php
===================================================================
--- trunk/src/wp-includes/class-wp-scripts.php	(revision 63440)
+++ trunk/src/wp-includes/class-wp-scripts.php	(revision 63579)
@@ -528,5 +528,6 @@
 		}
 
-		$script   = (array) $this->get_data( $handle, $position );
+		$script   = $this->get_data( $handle, $position );
+		$script   = false === $script ? array() : (array) $script;
 		$script[] = $data;