More than 1 'active' element in the locationPicker's location preview when changing the parent space

Since the location preview for the location picker is computed from an AJAX call, the resulting breadcrumbs will be computed in their original context and, in that context, they will have an active element set. We need to clean this active element when using it in the locationPicker's context because we have our own active element, which is the preview element (computed from page title or name).