bug in single line text field when enabling max characters option

Hello, I am using a single line text field in my form and when I enable the "maximum characters" option, the following HTML code is output. Notice the duplicate "0 of 10 max characters" as in:

<div class="ginput_container">
<input type="text" tabindex="2" maxlength="10" class="medium"
value="" id="input_4_6" name="input_6">
<div class="charleft ginput_counter warningTextareaInfo">0 of 10 max characters</div>
<div class="charleft ginput_counter warningTextareaInfo">0 of 10 max characters</div>
</div>

I have no other options enabled except the max character option.