In my tests I discovered also, that the "Account Expires" settings of the option (under the user properties/Account) are displayed correctly, but changes don't seem to be performed. I could only modify that in ADUC.
Is there any progress on this bug?
Created attachment 2914 [details]
Here the proposed patch
This patch fixes the issue, because there was missed to set a specific field.
Applied in -r 24942, thanks!