Fix CA cert dupe detection when no certs yet exist.
Fix CA cert dupe detection when no certs yet exist.

BlackstarGroup/pfsense,phil-davis/pfsense,jxmx/pfsense,phil-davis/pfsense,jxmx/pfsense,dennypage/pfsense,NOYB/pfsense,NOYB/pfsense,pfsense/pfsense,pfsense/pfsense,ch1c4um/pfsense,ch1c4um/pfsense,ptorsten/pfsense,pfsense/pfsense,brunostein/pfsense,NOYB/pfsense,phil-davis/pfsense,NewEraCracker/pfsense,pfsense/pfsense,NewEraCracker/pfsense,phil-davis/pfsense,NewEraCracker/pfsense,BlackstarGroup/pfsense,dennypage/pfsense,brunostein/pfsense,jxmx/pfsense,BlackstarGroup/pfsense,ptorsten/pfsense,ptorsten/pfsense,brunostein/pfsense,NewEraCracker/pfsense,dennypage/pfsense,dennypage/pfsense,ch1c4um/pfsense,BlackstarGroup/pfsense,ch1c4um/pfsense