Comment 8 for bug 336055

I have an implementation of this for pm-utils that does what's intended; however, what I find is that even though a rescan is forced from userspace, the ESSID that the system was associated to before suspend is not cleared from the list. So this is only a partial fix: the correct post-resume ESSIDs are listed and can be selected immediately from nm-applet, but NM won't automatically roam to them because it sees the previous ESSID is still available.