Description of problem:

Updating application fields resets the existing application tags . This issue doesn't occur in 6.2.

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

Upstream 0.3.0-alpha.5 (This will match the first 7.0.0 downstream build )

How reproducible:

Always 

Steps to Reproduce:

1. Tag an application
2. Update any application field , for eg: Description
3. Click 'Save' to save the changes.

Actual results:

Updating application fields resets app tags.
1) So, the tags from Reproducer step 1 are not shown anymore in the app side drawer.
2) Tag count is zero.

Expected results:

Updating application fields shouldn't resets app tags

Additional info: