Description of problem:

Attempting to delete a system template results in an error notice indicating: 
  'undefined method 'eq' for nil:NilClass

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

How reproducible:
always

Steps to Reproduce:
1. create a provider/product/repo
2. sync repo
3. create a system template (adding the repo from 1 to it)
4. save the repo
5. attempt to delete the repo
  
Actual results:
error notice generated indicating:
  'undefined method 'eq' for nil:NilClass

Expected results:
no error generated and template destroyed.

Additional info: