If the caps lock icon is rendered on the right part of password input fields, it interferes with the "dots" being typed. See: http://quaxio.com/caps_lock_rtl.png The html code which was used to create the above screenshot is here: http://quaxio.com/caps_lock_rtl.html
<rdar://problem/7678261>
This seems to be about text-align, not direction.
I'm wondering why the password field input goes from right to left when the keyboard input language hasn't been changed. Do we have two distinct bugs here ?