The "fix" in NM in that bug is to use wireless extensions instead of wpasupplicant with ndiswrapper, in effect confirming what I just said. Bug 42504 seems to be about ndiswrapper not working with wpasupplicant, at a glance.
-- Some drivers do not work with wpasupplicant, and therefore NM. https://launchpad.net/bugs/48473 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs