[Ifeffit] Athena 0.8.046 and the "%" character

Hi folks, I've just noticed a strange behaviour in Athena. Please, let me know if you can reproduce this "error": - Open a project with two mu(E) - Merge them in chi(k) [noise weighted] - Rename the "merge" group in "something%something_else" - Save the new group as chi(k) - Save the project Well: 1. The generated .chi file contains nothing 2. Artemis fails to open the chi(k) from the Athena project (trapping an error and showing nothing). 3. Re-doing everything *without the "%" character, works!* Cheers, Mauro