Description of problem:

When credentials associate with an application are updated, it should trigger new discovery tasks. 

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

7.2 

How reproducible:

 always

Steps to Reproduce:
1. Create an application and associate credentials.
2. Update the credentials
3. 

Actual results:

Discovery tasks not created. 

Expected results:

 Discovery tasks created.

Additional info: