HST configuration editor multiple site configuration - sitemenuitems reference to sitemap

The possibility of using the hst configuration editor to create menu's for my multiple website configuration. I'm taking Go Green (https://cms.demo.onehippo.com/) as my reference point for this, for it is using a multiple site configuration.

When I go to the Hst editor > (tab) Mobile > (section) Site menus > (any sitemenuitem) > Click on "Url Design reference"

I see the "Url Designer picker" dialog coming up, but I can only see the sitemapitems of the default site in the dialog (of "Go Green" in stead of "Mobile").(included screenpictures as attachment)

It seems that during login the HstContext, which it is using for retrieving sitemap, menus, component etc., is registered twice under the same name as a service [1]. And while retrieving the service it always retrieves the first one (the default site HstContext) [2].

[1] HstEditorPerspective:110
[2] EditorPlugin:53