Fix misleading validation error
Fix misleading validation error

Story: 2001758
Task: 12156

Change-Id: I76154ba2d3bc2993b5b3b8e37351ce2282a13f90

stackforge/monasca-ui,stackforge/monasca-ui,openstack/monasca-ui,openstack/monasca-ui,stackforge/monasca-ui,openstack/monasca-ui,stackforge/monasca-ui,openstack/monasca-ui