Description of problem:

Back button disables when freshly navigate to an instance using the provider.
(compute > clouds > providers > Azure > Instance) 


How reproducible: always


Steps to Reproduce:

Method-1
1. add cloud appliance Azure
2. compute > clouds > providers > Azure > 
                          In Relationships > Instances > Select any one Instance.
3. You will get >>>>> back button disable. 

Method-2:
1. close appliance UI and log in again.
2. compute > clouds > Instances > select last Instance.
3. You will get >>>>> back button enables with history(All instances by provider) for navigation.


Actual results:
Back button disable

Expected results:
Back button enable

I think in the first method also its has to enable with history(All instances by provider)

Additional info:
Yes, In explorer in both method "Instances by Provider" tab is there. but still....

Snapshots:

M-1: https://drive.google.com/a/redhat.com/file/d/0BwdZUxbvLToZZDB6dml1Q3lTdGc/view?usp=sharing

M-2: https://drive.google.com/a/redhat.com/file/d/0BwdZUxbvLToZV19od3kxRU5fNmM/view?usp=sharing