How to get Update for ZCM11SP2 from downloaded to ready

Hi,

In the ZCM 11 environment of one of our customers, the Updates have the following status
Name | Status
----------------------------------------------+-----------
Jan 2013 PRU | Baselined
Update for ZENworks (11 SP2) | Downloaded
Update for ZENworks 11 SP2 (11.2.2) | Ready
Monthly Update 2 for ZENworks 11 SP2 (11.2.2) | Ready

After the installation of Update for ZENworks 11 SP2 (11.2.2), the original version of Update for ZENworks (11 SP2) was deleted. This causes problems when trying to install the update to managed workstations:

Error The Update for ZENworks 11 SP2 (11.2.2) update requires the following update(s) to be downloaded and authorized before it can be deployed: Update for ZENworks (11 SP2)

I reimported the Update for ZENworks (11 SP2), but how do I get the status from Downloaded to Ready, so update deployment can be done from the ZCC again?