[2128554] The storageclass of VM disk is different from quick created and customize created after changed the default storageclass

+++ This bug was initially created as a clone of Bug #2115258 +++

Description of problem:
After change the default storageclass, create vm via quick way and customize way, their disks get different storageclass

Version-Release number of selected component (if applicable):
v4.11.0-83

How reproducible:
100%

Steps to Reproduce:
1. the default cluster is 'hostpath-csi-basic' at first
2. set the default cluster to OCS
3. create a vm via the quick way
4. create a vm via the customize way (just click and finish it, don't edit the disk)

Actual results:
the disks of the two VMs got different storageclass

Expected results:
It should have the consistent results

Additional info:

— Additional comment from Guohua Ouyang on 2022-08-19 07:46:12 CST —

verified on v4.12.0-106

— Additional comment from errata-xmlrpc on 2022-08-21 13:55:25 CST —

This bug has been added to advisory RHEA-2022:95482 by CPaaS, owned by Greg Allen (contra-dev/pipeline@REDHAT.COM)