Alien "/etc/fuel/bootstrap_admin_node.confe" file on Fuel Master

After installation I have 2 files:
[root@fuel ~]# ls -l /etc/fuel/bootstrap_admin_node.conf*
-rw-r--r--. 1 root root 129 Mar 3 13:57 /etc/fuel/bootstrap_admin_node.conf
-rw-r--r--. 1 root root 125 Mar 3 13:49 /etc/fuel/bootstrap_admin_node.confe
[root@fuel ~]#

Here is the diff:
[root@fuel ~]# diff -u /etc/fuel/bootstrap_admin_node.conf{,e}
--- /etc/fuel/bootstrap_admin_node.conf 2016-03-03 13:57:58.979000000 +0000
+++ /etc/fuel/bootstrap_admin_node.confe 2016-03-03 13:49:12.109639450 +0000
@@ -1,5 +1,5 @@
 #Set to yes to run Fuel Setup
 #Set to no to accept default settings
-ADMIN_INTERFACE=eth0
+ADMIN_INTERFACE=
 showmenu=no
 wait_for_external_config=no
[root@fuel ~]#

So "e"-file was modified earlier.

Maybe there is a typo in a code.

my ISO: fuel-9.0-mitaka-64-2016-03-03_12-16-00.iso