When marking order as „paid”, the payment date is „0000-00-00 00:00:00”

[man.of.earth]

Hello,

I see that when marking order as ,,paid", the payment date is ,,0000-00-00 00:00:00".
I remember few minor versions ago, this worked correctly, adding the date and time of clicking on ,,paid".
For some minor versions, it reverted to working this way.

This has connection to whether or not showing the customers the payment date in the frontend, in the order history. It should not, if it does not work properly.