[CinePaint] Bracketing to HDR plugin crashes with images generated from the same RAW file

The bracketing to HDR plugin crashes with bracketing_to_hdr:
Fl_Cartesius.cpp:340: double AxisInfo::dtick_by_pbt(double, double):
Assertion `dw != 0.0' failed. when I try to compute response curves
for a set of images derived from the same RAW file (outputted by
GIMP). Don't know if I'm doing something wrong or not, but couldn't
find anything on Google and thought I'd give the list a heads up.

-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/