webadmin: Fix VM/Template General form

This patch fixes the problem when VM/Template General
form displays obsolete values ater doing VM/Template
import.

Change-Id: I8b8c43f355df85121d70eae60fab4c0f6b7575a8
Bug-Url: https://bugzilla.redhat.com/919672
Signed-off-by: Vojtech Szocs <vszocs@redhat.com>