Fix getEtag for roots of shared storages
Fix getEtag for roots of shared storages

owncloud/core,jbicha/server,andreas-p/nextcloud-server,nextcloud/server,pixelipo/server,endsguy/server,bluelml/core,xx621998xx/server,xx621998xx/server,owncloud/core,IljaN/core,bluelml/core,pixelipo/server,pollopolea/core,pixelipo/server,xx621998xx/server,pollopolea/core,phil-davis/core,sharidas/core,whitekiba/server,nextcloud/server,IljaN/core,lrytz/core,pmattern/server,sharidas/core,Ardinis/server,cernbox/core,michaelletzgus/nextcloud-server,whitekiba/server,nextcloud/server,xx621998xx/server,sharidas/core,lrytz/core,pixelipo/server,Ardinis/server,endsguy/server,andreas-p/nextcloud-server,endsguy/server,sharidas/core,owncloud/core,whitekiba/server,lrytz/core,pixelipo/server,pmattern/server,lrytz/core,pollopolea/core,owncloud/core,owncloud/core,sharidas/core,jbicha/server,IljaN/core,IljaN/core,pmattern/server,IljaN/core,Ardinis/server,nextcloud/server,jbicha/server,Ardinis/server,cernbox/core,pmattern/server,andreas-p/nextcloud-server,lrytz/core,andreas-p/nextcloud-server,bluelml/core,cernbox/core,xx621998xx/server,cernbox/core,whitekiba/server,whitekiba/server,michaelletzgus/nextcloud-server,jbicha/server,pollopolea/core,bluelml/core,bluelml/core,pollopolea/core,jbicha/server,michaelletzgus/nextcloud-server,endsguy/server,Ardinis/server,endsguy/server,cernbox/core,michaelletzgus/nextcloud-server,andreas-p/nextcloud-server,pmattern/server