when setting up a VM with arm64 datasources ,

configuration auto-populates  kubernetes.io/arch: arm64  when datasources are  arm based     spec:
      nodeSelector:
        kubernetes.io/arch: arm64 

while spec.architecture has to be set explictly, ideally if nodeSelector is auto-populated with kubernetes.io/arch: arm64 , set spec.architecture to arm64 by default.

4.20

always

1. To reproduce , open UI in a heterogeneous cluster. Make sure enable enableMultiArchBootImageImport in hco
2. create a VM using fedora.arm64 datasource and create VM with instancetype flow from UI. Observe nodeselector is picked kubernetes.io/arch: arm64 
3. on VM spec see, architectire is still amd64

spec.architecture is amd64 always  and must be set explicitly for non arm. This is too manual for big setups.

If nodeSelector is auto-populated with kubernetes.io/arch: arm64 , set spec.architecture to arm64 by default