Use state_set in fa_clone
Use state_set in fa_clone

To speed up fa_clone, keep the correspondence between old and new states in
a state_set to reduce allocation overhead.

bkearney/augeas,jjlin/augeas,lutter/augeas,kumy/augeas,mlichvar/augeas,hercules-team/augeas-do-not-use,kunkku/augeas,bkearney/augeas,mlichvar/augeas,camptocamp/augeas,jasperla/augeas,lutter/augeas,domcleal/augeas,kumy/augeas,kumy/augeas,kunkku/augeas,ptoscano/augeas,mchf/augeas,camptocamp/augeas,dafugg/augeas,hercules-team/augeas-do-not-use,jjlin/augeas,lutter/augeas,jtopjian/augeas,jtopjian/augeas,raphink/augeas,domcleal/augeas,manandbytes/augeas,hercules-team/augeas,hercules-team/augeas-do-not-use,jjlin/augeas,dafugg/augeas,bkearney/augeas,domcleal/augeas,MikaelSmith/augeas,dafugg/augeas,raphink/augeas,ptoscano/augeas,kumy/augeas,manandbytes/augeas,kunkku/augeas,pevalme/augeas,camptocamp/augeas,mlichvar/augeas,jasperla/augeas,camptocamp/augeas,pevalme/augeas,GeoffWilliams/augeas,hercules-team/augeas,GeoffWilliams/augeas,MikaelSmith/augeas,bkearney/augeas,ptoscano/augeas,pevalme/augeas,mchf/augeas