Fix segv on repetition of regexps
Fix segv on repetition of regexps

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