PDF output not always wrapping long invoice lines

[Eric Wheeler]

Hello all,

We found a strange bug that we are able to reproduce, but inconsistently:

We use the "taxinvoice.eguile.scm" tax invoice template and are able to 
reproduce the problem with an unmodified version. See the these PDFs 
for the working and broken versions:
	https://mx.ewheeler.net/~lists/Invoice-broken.pdf
	https://mx.ewheeler.net/~lists/Invoice-working.pdf

The working version correctly wraps long lines on the invoice, whereas, 
the broken version truncates the table and does not size correctly for 
the PDF virtual paper.

We have found that resizing the window can help create the bug or fix it, 
but not consistently. Without resizing, we saved the same errant invoice 
10 times and it worked correctly 4 of those 10 times, which makes me think 
that resizing the window is just a placebo effect.

Any idea what might cause such a strange issue?

--
Eric Wheeler