Fixed IsShared update Bug.
Fixed IsShared update Bug.

Change-Id: I69f4109903a46a53d2d9f8dc6ef4c00356329124

vishnuvv/contrail-web-controller,biswajit-mandal/contrail-web-controller,vishnuvv/contrail-web-controller,manojgn/contrail-web-controller,sbavanasi/contrail-web-controller,vishnuvv/contrail-web-controller,biswajit-mandal/contrail-web-controller,skizhak/contrail-web-controller,JioCloud/contrail-web-controller,sbavanasi/contrail-web-controller,biswajit-mandal/contrail-web-controller,sbavanasi/contrail-web-controller,varunarya10/contrail-web-controller