webadmin: Fix creating of a new template

When creating a new template, the initTemplate() method
is called after the list of base templates is loaded.
However, if there are no templates other than the Blank
template, the list is not loaded and the initTemplate()
method is never called. As a result, the builders from
VM to UnitVmModel are never called and the UnitVmModel
is not initialized properly. The attempt to create a new
template fails.

This patch calls the initTemplate() method also for the cases
when there are no base templates available and the Blank template
is the only template present.

frontend/webadmin/modules/uicommonweb/src/main/java/org/ovirt/engine/ui/uicommonweb/models/vms/NewTemplateVmModelBehavior.java

@@ -128,6 +128,7 @@ private void postInitBaseTemplate(List<VmTemplate> templates) {
             // it is not allowed to create sub-templates of Blank template
             getModel().getIsSubTemplate().setIsChangeable(false,
                     constants.someNonDefaultTemplateHasToExistFirst());
+            initTemplate();
             return;
         }