[Fedora TeX Live] New pdflatex.fmt error

[Mary Ellen Foster]

After today's updates (TexLive 2012 on Fedora 17), I now get the following
error:

This is pdfTeX, Version 3.1415926-2.5-1.40.13 (TeX Live 2013/dev)
 restricted \write18 enabled.
---! /home/mef3/.texlive2012/texmf-var/web2c/pdftex/pdflatex.fmt doesn't
match pdftex.pool
(Fatal format file error; I'm stymied)


The trick from https://bugzilla.redhat.com/show_bug.cgi?id=745765#c1doesn't
seem to work this time ... why does this sort of thing keep
happening?

MEF

-- 
Mary Ellen Foster -- http://www.macs.hw.ac.uk/~mef3/
Interaction Lab -- http://www.macs.hw.ac.uk/InteractionLab
School of Mathematical and Computer Sciences, Heriot-Watt University

Heriot-Watt University is a Scottish charity registered under charity
number SC000278
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