DHCP Relay - server textbox field doesn't toggle properly

Ticket #1313
DHCP Relay - server textbox field doesn't toggle properly

Ticket #1313

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