[Plugin: Contact Form 7] (select) drop-down menu bug

Hey there.
I’ve found a bug.
If in “select” i write russian words, for example: “Поддержа” “Отзыв”
they dissapear in drop-down. BUT, if i write same word but with lowercase letters, for example: “поддержа” “отзыв” then alright.

http://wordpress.org/extend/plugins/contact-form-7/