User Defined Action at Wiki destroys EXIF-data in jpg

[malenki]

At the user defined action "Losslessly Rotating JPEGs"
in http://thunar.xfce.org/pwiki/documentation/custom_actions the
command using jpegtran destroys all EXIF data.

The script I am using for lossless rotating (no side effects registrered
up to now) looks like this:
#!/bin/sh
#rotate images 270°
for i;
do renrot --only-orientation --no-rename --no-trim -r 270 "$i" ;
done

The jpegtran command at the wiki should be substituted with one
using renrot I'd say...

Regards
malenki