Fix an issue where the first click on the profile menu collapse link could be swallowed

Summary: `alterClass()` is strict about true/false but we set 0/1 elsewhere.

Test Plan: Collapsed/expanded menu, reloaded expanded menu, clicked collapse, got immediate collapse.

Reviewers: chad

Reviewed By: chad

Differential Revision: https://secure.phabricator.com/D15087

src/applications/search/engine/PhabricatorProfilePanelEngine.php

@@ -382,7 +382,7 @@ abstract class PhabricatorProfilePanelEngine extends Phobject {
       array(
         'menuID' => $nav->getMainID(),
         'collapseID' => $collapse_id,
-        'isCollapsed' => $is_collapsed,
+        'isCollapsed' => (bool)$is_collapsed,
         'settingsURI' => $settings_uri,
       ));