My experience is similar to Sean's although I have managed to keep my system in a usable state. mdadm and my raid seem to be functioning as normal, I just can't get through any apt related tasks without it getting stuck on configuring mdadm. I am also seeing update-grub run through my kernels twice when I run it. Not sure if that is significant. would like to find a workaround as upgrading packages will be a pain with this bug. Let me know if you need any info from me to squash this one.
My experience is similar to Sean's although I have managed to keep my system in a usable state. mdadm and my raid seem to be functioning as normal, I just can't get through any apt related tasks without it getting stuck on configuring mdadm. I am also seeing update-grub run through my kernels twice when I run it. Not sure if that is significant. would like to find a workaround as upgrading packages will be a pain with this bug. Let me know if you need any info from me to squash this one.