Accents can't be used for true/false values in Reports

Accents can't be used for true/false values in Reports

This is pretty self-explanatory : 


Is there any way we can have this working? This is especially a problem for our french-speaking clients, because in French, past tense verbs used as adjectives often end in "é" (ex: "Ajouté" means Added) which is counted as a special character, when it shouldn't.