There’s a post by someone on one of the US forum threads who states they’ve had a GM reply to them direct with this information:
Thank you for your understanding, I want to share with you this update as of yesterday. Our developers gathered all the information needed about the bug and will start restoring the lost items automatically. Hang in there, we are doing everything we can to keep your gaming experience smooth as possible.
There is more but this is what I received from GM Tejoenrteeg
I have no way of knowing is this is indeed the case - there is no blue post on any threads that I’ve seen, to this effect, and I’ve not seen any information elsewhere suggesting this is the case … but equally I have no reason to doubt it.