Error when checking out package from TFS

[Geert Bellekens]

Sometimes i get the error:
The current action cannot be completed as the necessary security is not available when checking out a package that is controlled in TFS.
Before it starts I get the dialog asking me to lock the package (as we have security setup with the option "Require user lock to edit"). I confirm that I want to lock the package, but sometimes it seems that there is a race condition where the checkout process begins before the locking is finished.
Trying again to check out a package works, but this is just annoying.
I've reported this to Sparx

Geert