Update File.php

replace
$this->directory[$entry->tag] = $entry;
to
$this->addDirectoryEntry($entry);

Author: BuslikDrev

src/FontLib/TrueType/File.php

@@ -405,7 +405,7 @@ function parseTableEntries() {
       $entry = new $class($this);
       $entry->parse();
 
-      $this->directory[$entry->tag] = $entry;
+      $this->addDirectoryEntry($entry);
     }
   }