It is still right to fix the empty script execution (#4 in my timeline post) in the version that is in Zesty. Tests are mostly good, should hit zesty-proposed soon.
As it is not called on Yakkety in any supported case there is no real reason to SRU there. And it won't help you as we just clarified that the UCA-Newton still has the libvirt of Xenial.
It is still right to fix the empty script execution (#4 in my timeline post) in the version that is in Zesty. Tests are mostly good, should hit zesty-proposed soon.
As it is not called on Yakkety in any supported case there is no real reason to SRU there. And it won't help you as we just clarified that the UCA-Newton still has the libvirt of Xenial.