Out-of-Office Not able to open Worklist-Item

Hello Community,

I struggle a little bit with the Out-Of-Office function in K2. 

User A has set the OOF and User B sees the Worklist-Item. But when he tries to open the Worklist-Item via the Form to approve he get the error message

"Worklist item could not be opened. User B is not allowed to open the worklist item with SN=XXXX".

I've found this article in the Community

http://community.k2.com/t5/K2-blackpearl-Articles/Cannot-open-task-redirected-from-out-of-office-function/ta-p/77718

Is this Bug not fixed yet?

I thought when OOF is set User B is able to open all Worklist-Items and approve them. Is this not correct?

Thank you for your help in advance.

Alex