Steps to reproduce

• Create one folder "Folder1"
• Create another folder "FolderDestination"
• Add "FolderDestination" to the locations of the Folder1
• Move "Folder1" to "FolderDestination" - (currently this is being allowed but shouldn't this be restricted, since there is already a location for Folder1 on the FolderDestination container?)
• We can see that now "FolderDestination" appears twice on locations for Folder1
• Now view the "FolderDestination" object. On Sub-items no items are shown and in developer tools, we have the error:

  TypeError: this.get(...) is undefined
  http://ezp.paulo/_ezcombo?/bundles/ezplatformui/js/views/tabs/ez-locationviewversionstabview.js&/bundles/ezplatformui/js/extensions/ez-tabs.js&/tpl/handlebars/subitemboxview-ez-template.js&/bundles/ezplatformui/js/views/subitem/ez-subitembaseview.js&/bundles/ezplatformui/js/extensions/ez-loadmorepagination.js&/bundles/ezplatformui/js/views/subitem/ez-asynchronoussubitemview.js&/tpl/handlebars/subitemlistitemview-ez-template.js&/tpl/handlebars/subitemlistitem-name-ez-template.js&/tpl/handlebars/subitemlistitem-priority-ez-template.js&/bundles/ezplatformui/js/views/subitem/ez-subitemlistitemview.js&/tpl/handlebars/subitemlistmoreview-ez-template.js&/bundles/ezplatformui/js/views/subitem/ez-subitemlistmoreview.js&/tpl/handlebars/subitemgriditemview-ez-template.js&/bundles/ezplatformui/js/views/subitem/ez-subitemgriditemview.js&/tpl/handlebars/subitemgridview-ez-template.js&/bundles/ezplatformui/js/views/subitem/ez-subitemgridview.js&/bundles/ezplatformui/js/views/ez-subitemboxview.js
  Line 1154