Fix collection's listing when shared to an external user

How to reproduce:

• log in the WEB UI as an administrator
• add a document to a new collection named NXP_coll1
• navigate to collection NXP_coll1
• in PERMISSIONS tab, assign READ permission to an external user (email address)

Expected result: when the external user clicks on the NXP_coll1 collection's link from the email, the collection's listing shows the document
Actual result: when the external user clicks on the NXP_coll1 collection's link from the email, the collection's listing does not show the document