Breadcrumb in link picker dialog can lead to unexpected behavior in case of document selecting.

Issue CHANNELMGR-1701 describes problem with link picker dialog and breadcrumb inside it in case of picking destination in create-content step 1. But same problem is fair for selecting document using CC magnifying glass button. 

Scenario:

1. Add banner to some container.
2. Click CC magnifying glass and select 'documents' using dialog's breadcrumb.
3. Click ok.

Problem: Toast message 'Document selected for banner'. Stacktrace in tomcat log: javax.jcr.RepositoryException: Invalid path:/content/documents/hap//content/documents

Expected: Not possible to select 'documents' outside of hap channel.

       4. Click CC magnifying glass again and click dialog 'Ok'.

Problem: Exception in modal dialog.

Expected: Ok button disabled until document selected.