It has not been fully resolved at all. It resolved in it doesn't return null anymore. But the date it returns doesn't update when you edit the transfer. It just always returns the initial date the used when creating the transfer. This is so annoying....

I'm having the same issue with my store. Luckily i can override my new back-in-stock code and use my old method of tagging products with the back-in-stock month while we wait for this to be fixed. I hope it's fixed soon!