New course enrollment not refreshed

When using Moodle app for iPhone, app does not refresh courses when user are enrolled in a new course after first app connection.

To reproduce:

• as admin or manager, on a Moodle 2.2 site, enroll "user A" in "course X"
• as "user A", connect to the site using official Moodle iPhone App
• check if "user A" is able to see "course X" from the official Moodle iPhone app using the "contents" button
• as admin or manager, now enroll "user A" in "course Y" on the same site
• as "user A", access the iPhone app and check available courses in "contents" button. New course is not displayed.

Moodle version: Moodle 2.2+ (Build: 20111209)
App version: latest available from App store installed on December, 22th, 2011.