Automatic installation failed. Bug!

If in ini-file the variable ispconfig_admin_password=admin, automatic installation goes well...

If the variable is not "admin" automatic installation failed...

The error is in the file install.php the line 550

if($conf['interface_password'] != 'admin') { $check = false; do { unset($temp_password); $temp_password = $inst->free_query('Re-enter admin password', ''); $check = @($temp_password == $conf['interface_password'])?true:false; if(!$check) swriteln('Passwords do not match.'); } while (!$check); }

How to fix?