Fix refresh tree when not permitted to access part of path

Setup:

• Create a Nuxeo domain with JSF, and start Studio.
• Create a folderish document MonDocument with a content view which retrieves:
  ecm:mixinType != 'HiddenInNavigation' AND ecm:isCheckedInVersion = 0 AND ecm:currentLifeCycleState != 'deleted' AND (ecm:primaryType="MonDocument" OR ecm:primaryType="File")
  The purpose of this is to display all File or MonDocument that can be accessed by a user.

In Nuxeo,

• create a user "user"
• create a workspace "ws"
• in "ws", create a Folder "folder"
• in "folder", create a File "fileinfolder"
• block all inherited permissions on "ws"
• give permission on "folder" to "user"

• under Workspaces, create another workspace "wsuser"
• in "wsuser", create a MonDocument "document"
• verify that selecting MonDocument, both "document" and "fileinfolder" are listed

• logoff Administrator*
• login as "user"
• goto to "wuser > document", and watch the tree on the left hand side
• click onto "fileonfolder" in the "document" page, and watch the tree on the left hand side: it has not changed!
• refresh the page (F5): still the same
• refresh specifically the tree on the left hand side: the tree now starts as "folder"

There are 2 issues to decipher here:

• why is the tree not refreshed automatically?
• how can a user get back to the upper part of the tree if the tree now starts at "folder"? (This second part could be another bug)