Deleting an application with no fleet can cause a crash.

[LiZhenCheng9527]

What happened:
Getting Stuck When Deleting Application Created in the Wrong Namespace During Testing

During testing, I made a mistake by creating the fleet and application in different namespaces. When I tried to delete the incorrectly created application, it got blocked.

What you expected to happen:

Able to successfully delete Applications without a Fleet

How to reproduce it (as minimally and precisely as possible):

1.Create the fleet and application in different namespaces.
2. Delete the incorrectly created application.

Anything else we need to know?:

Environment:

• Kurator version: 0.6.0

[LiZhenCheng9527]

/assign