while applying "oc adm upgrade --to-multi-arch"
certain flags such as --to and --to-image are blocked with error message such as: 
error: --to-multi-arch may not be used with --to or --to-image
however if one applies --force, or --to-latest, no error message is generated, only:
Requested update to multi cluster architecture
and the flags are omitted silently, applying .spec:
desiredUpdate:
    architecture:    Multi
    force:    false   <- --force silently have no effect here
    image:    
    version:    4.13.0-ec.2  <- --to-latest omitted silently either 

4.13.0-ec.2 but seen elsewhere

100%

1. oc adm upgrade --to-multi-arch --force
2. oc adm upgrade --to-multi-arch --to-latest
3. oc adm upgrade --to-multi-arch --force --to-latest 

omitted silently as explained above

either blocked with the same error as --to and --to-image
or if there is a use case, should have the desired effect and not omitted