Description of problem:
When user loads the referenced page, the dropdown for "Available Subscriptions" flickers on and off at random, apparently until user clicks somewhere in the page or something.

Version-Release number of selected component (if applicable):


How reproducible:
Seems everytime, with Firefox and Chrome

Steps to Reproduce:
1.  Subscribe and sync some RHEL channels.
2.  Register a system to CFSE -- you might want to use an activation key (that's what was done here)
3.  Navigate to Systems > All > $system > Subscriptions
4.  View results  

Actual results:
The dropdown for "Available Subscriptions" goes crazy.

Expected results:
Normal UI.

Additional info:

 CloudForms System Engine Version: 1.1.12-7.el6cf