Fix setting/unsetting of Disable option.
Fix setting/unsetting of Disable option.

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