Fix a bug where Phortune accounts created via "Create Account" would not have the viewer added as a member

Summary:
Ref T12451. When you explicitly created a second or third account or whatever, you wouldn't be added as a member.

(The editor sees that you're "already a member", so it doesn't add you.)

Test Plan:
  - Go to `/phortune/`.
  - Click "Switch Accounts".
  - Click "Create Account".
  - Create an account.
  - Before patch: unable to view it since you don't get added as a member.
  - After patch: account created with you as member.
  - Also created an accont with multiple members.
  - Tried to create an account with no members.
  - Tried to create an account with just someone else as a member.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T12451

Differential Revision: https://secure.phabricator.com/D17690

src/applications/phortune/storage/PhortuneAccount.php

@@ -16,10 +16,8 @@ final class PhortuneAccount extends PhortuneDAO
   private $memberPHIDs = self::ATTACHABLE;
 
   public static function initializeNewAccount(PhabricatorUser $actor) {
-    $account = id(new PhortuneAccount());
-    $account->memberPHIDs = array($actor->getPHID() => $actor->getPHID());
-
-    return $account;
+    return id(new self())
+      ->attachMemberPHIDs(array());
   }
 
   public static function createNewAccount(