Speaking about it, those "date\v" are wrong there too
Just to undestant the issue, those "\a" and "\v" prefixes are in "english" form because english translation also presents a unique key for text. Sometimes it moght not be "unique enough" (e.g. if the text is too short), that is why is is extended by "prefix" which is NOT part of resulting string even for english translation. Anyway, this part should not be in non-english texts.
(\a vs \v the difference is that with '\v' key is formed by english text with prefix, while with '\a' the prefix is the key).