• copier.Get(): ignore ENOTSUP/ENOSYS when listing xattrs
• ADD: handle --chown on URLs
• imagebuildah: cache should take image format into account
• copier: try to force loading of nsswitch modules before chroot()
• overlay: use fusermount for rootless umounts
• overlay: fix umount
• copier: put: ignore Typeflag="g"