[BUG] 'Expunging' VM Snapshots show in the UI

[PaulAngus]

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

Pre-req:
VM snaphot in expunging state must exist.

1. Go to 'storage' > 'VM Snapshots'
2. See error

Expected behavior

VMs in 'Expunging' state are not expected to be seen.

Screenshots

Desktop (please complete the following information):

• OS: [e.g. Windows, Mac, iOS, Android with device/screen details if applicable]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.

[yadvr]

I tested this is not a UI issue but a potential cleanup/GC issue, I've logged an issue here instead apache/cloudstack#4201
Legacy UI shows the same:

Primate screenshots as admin and normal user: