Description of problem:
If installing Fedora 19 in text mode, hitting the backspace will delete the entire text of the prompt.

For example, if the screen shows:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 1) [!] Timezone settings          2) [!] Install Destination
        (Timezone is not set.)            (No disks selected)
 3) [!] Set root password          4) [!] Create user
        (Password is not set.)            (No user will be created)
  Please make your choice from above ['q' to quit | 'c' to continue]:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

And you type '5' and then realize your mistake and hit backspace, you get:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 1) [!] Timezone settings          2) [!] Install Destination
        (Timezone is not set.)            (No disks selected)
 3) [!] Set root password          4) [!] Create user
        (Password is not set.)            (No user will be created)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



Version-Release number of selected component (if applicable):
anaconda-19.28-1    (Fedora 19 Beta RC2)

How reproducible:
every time

Steps to Reproduce:
1. install in text mode
2. hit backspace at a prompt

Actual results:
prompt disappears

Expected results:
only the text you typed is erased

Additional info: