First character converted to lowercase for comparison

The first character of text data is always converted to lowercase and this is not needed. For instance if I have the strings "user.analyst" and "User.analyst" in my data array and the autocomplete set to matchCase=true, only the letter 'u' will show entries.

If I type in 'U', no entries are shown. I looked in the JS and there is a line where it defines sFirstChar that gets the first character in the string and converts it to lowercase everytime before comparison. The toLowerCase() method is not needed here and results in improper suggestion return.