term in <variablelist> is rendered incorrectly in PDF

(my, but it's been a busy docbook morning).

  before the 1.62 stylesheets for FO, i reported having a problem
with variablelist terms being broken over a page.  since upgrading
to 1.62, *that* problem has gone away, but a new one has arisen.

  it seems to have something to do with hyphenation.  if i create
a variablelist term that has no obvious hyphenation, like "XXXXXX",
then the PDF output looks like

   XXXXX    whatever
   X

in other words, the processing seems to simply break the term near
the end and continue on the next line.  if i try an even longer
garbage term like "XXXXXXXXXX", i get

   XXXXXXXX   whatever
   XX

if i try something for which hyphenation is at least feasible,
like "abcdefghijklmno", i get

   abcde-       whatever
   fghijklmno

which seems reasonable (given a very flexible definition of 
"reasonable" :-).

  so the problem *seems* related to hyphenation, or the lack of
ability to do so.

  thoughts?  can anyone else reproduce this?  i'm pretty sure
i haven't added any customization related to variablelists
anywhere.

rday