Launching an Ironic instance with file injection deploys instance without file injection

Precondition:
 - Environment without Ceph
 - Ironic

Steps to reproduce:
 - on the all compute nodes in /etc/nova/nova.conf set inject_partition=-1
 - restart service nova-compute restart
 - navigate to the controller node
 - as demo user launch Ironic instance with file injection
execute:
touch myfile.txt
echo "# Hi there!!!" >> myfile.txt
nova boot \
        --flavor bm_flavor \
        --image virtual_ubuntu_trasty_ext4_demo \
        --key-name ironic_demo_key \
        --nic net-id=$(awk '{/baremetal/print $2'}) \
        --file /home/ubuntu/myfile.txt=myfile.txt \
        vm_test_img_01

Actual result:
There are no file in the /home/ubuntu/ directory on the instance

Expected result:
myfile.txt is in the /home/ubuntu/ directory on the instance