> This bug maybe should be moved to avahi?

The problem is in /etc/bash_completion, or at least can be fixed by modifying
/etc/bash_completion (see attached diff), so it seems reasonable to call this a
bash-completion bug. Of course, it may be that avahi-browse isn't meant to block
while waiting for resolution, which would then be an avahi bug.

My attempt at patching this removes the resolve argument (-r) from avahi-browse,
so it just spits out cached data in a parseable format (-cp).
*** /etc/bash_completion        2010-01-26 22:44:47.000000000 +1300
--- /etc/bash_completion.old    2010-01-26 22:44:26.000000000 +1300
***************
*** 1309,1315 ****
          if type avahi-browse >&/dev/null; then
              if [ -n "$(pidof avahi-daemon)" ]; then
                  COMPREPLY=( "${comprep...@]}" $(
!                 compgen -W "$( avahi-browse -cp _workstation._tcp | \
                  grep ^= | cut -d\; -f7 | sort -u )" -- "$cur" ) )
              fi
          fi
--- 1309,1315 ----
          if type avahi-browse >&/dev/null; then
              if [ -n "$(pidof avahi-daemon)" ]; then
                  COMPREPLY=( "${comprep...@]}" $(
!                 compgen -W "$( avahi-browse -cpr _workstation._tcp | \
                  grep ^= | cut -d\; -f7 | sort -u )" -- "$cur" ) )
              fi
          fi

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