Comment 2 for bug 885692

We do not want the owner or driver to also be in the bug supervisor role to edit bugs properly, nor do we want to require user to assign the role to make permissions work.This is essentially the problem now. Users must nest teams to and fill all the roles to get permission, though this also leads to unwanted emails. Fixing this bug is a half step to not requiring maintainers to also be the bug supervisor...then the maintainer can truly delegate a responsibility and not set a /dev/null email address to stop Launchpad from spamming.