Special characters and brackets enclosing

[benoitseron]

When using the option "Enclose values in double braces" I found that special characters induce bugs. For instance,

      author={Garc{\'\i}a-Patr{\'o}n, Ra{\'u}l and Renema, Jelmer J and Shchesnovich, Valery},

becomes

	author       = {{Garc\'\i}a-Patr{\'o}n, Ra{\'u}l and Renema, Jelmer J and Shchesnovich, Valery}}}},

I am not sure if this is normal behaviour but it leads to problems at compilation (next lines will usually not show).