balloons and changing workspace under linux

[Charles E Campbell]

Hello:

I use balloons -- (see :he bexpr) -- but they persist when I change
workspaces using ctrl-alt-arrow  (workspaces are done via Mate, yum -y
groupinstall mate-desktop ).
Having a balloon in an unrelated workspace is incorrect.  I suppose I
could use FocusLost and force the issue, but it seems to me that vim
ought to do this itself.

What say you?
Chip Campbell