Switch writing to stash buckets to new stashes
Switch writing to stash buckets to new stashes

Change-Id: Ib53c45ef82ed7867766056acb9ce47eff865577f

wikimedia/mediawiki-services-restbase,wikimedia/restbase,cscott/restbase,milimetric/restbase,milimetric/restbase,d00rman/restbase,wikimedia/mediawiki-services-restbase,cscott/restbase,Pchelolo/restbase,d00rman/restbase,Pchelolo/restbase,wikimedia/restbase