Restore hack which allowed importing projects.b.o passwords

src/applications/people/storage/PhabricatorUser.php

@@ -289,9 +289,11 @@ final class PhabricatorUser
   }
 
   private function getPasswordHashInput(PhutilOpaqueEnvelope $password) {
+    /* phabricator hashing is modified to add an extra md5(), so that we can
+     * import md5 hashed passwords from gforge and keep them working */
     $input =
       $this->getUsername().
-      $password->openEnvelope().
+      md5($password->openEnvelope()).
       $this->getPHID().
       $this->getPasswordSalt();