ux-redesign: fix PageRouter previousPath bug
ux-redesign: fix PageRouter previousPath bug

When directly loading, or reloading, the edit page (a 2nd tier nested
route), previousPage would be assigned and invalid value and break the
page render.

oVirt/ovirt-web-ui,oVirt/ovirt-web-ui,mareklibra/userportal,mareklibra/userportal,mareklibra/userportal,mareklibra/userportal,oVirt/ovirt-web-ui