Description of problem:

When modifying/editing an application in the UI, the previously associated credentials are removed from the application and need to be manually re associated with it. 

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

6.2.1 

How reproducible:

 100%

Steps to Reproduce:
1. Create application with git/svn configuration
2. Associate credentials with the application
3. Edit the application configuration and hit save

Actual results:

The previously associated credentials are removed from the application configuration. 

Expected results:

 The associated credentials remain on the application.

Additional info: