[meta-virtualization] possible regression with: image-oci-unmoci: preserve file modes

Hi all,

[0] caused a regression on my site. I am installing a recipe into the container that sets ACLs with setfacl in pkg_postinst. To my understanding those xattr were not preserved before anyways so wouldn't it be better to change it to:

cp -r --preserve=mode,timestamps,links ${IMAGE_ROOTFS}/* $image_bundle_name/rootfs

Could also be that I am doing something wrong in my recipe when setting the ACLs. 

[0] https://git.yoctoproject.org/meta-virtualization/commit/?h=scarthgap

Best Regards
Patrick