Comment 10 for bug 1471459

It turns out that Ubuntu carries a patch for sudo that Debian doesn't: see keep_home_by_default.patch [1].
See also the changelog [2], somewhere in item 72. So I think one should ask the Ubuntu maintainer of sudo what the motivation for this patch is. And if there is no strong reason for it, ask him to drop it. That would solve this issue.

[1] https://bazaar.launchpad.net/~ubuntu-branches/ubuntu/wily/sudo/wily-proposed/files/head:/debian/patches/
[2] https://code.launchpad.net/~ubuntu-branches/ubuntu/wily/sudo/wily