After upgrading to 1.9.16 it is imposible to create a new account using /user/editadvanced.php?id=-1
It always consider the password invalid

On 1.9.15 it works and inside the HTML we can find

<div class="felement fpassword"><input size="20" name="newpassword" type="password" onblur="validate_user_editadvanced_form_newpassword(this)" onchange="validate_user_editadvanced_form_newpassword(this)" id="id_newpassword" /><script type="text/javascript">

On 1.9.16 it does not work and inside the HTML we can find

<div class="felement fpassword"><input size="20"><script type="text/javascript">

As you can see the "newpassword" form field is cropped.