Comment 27 for bug 1576747

as a temporary work around I put a script here:

/etc/pm/sleep.d/99_restart_network_manager

That contains:

#! /bin/sh

case $1 in
     suspend|suspend_hybrid|hibernate)
        service network-manager restart
        ;;
     resume|thaw)
        # No need to do anything here
        :
        ;;
esac