Fix non-digest register authorisation
Fix non-digest register authorisation

biddyweb/flexisip,BelledonneCommunications/flexisip,gale320/flexisip,gale320/flexisip,biddyweb/flexisip,biddyweb/flexisip,BelledonneCommunications/flexisip,BelledonneCommunications/flexisip,biddyweb/flexisip,BelledonneCommunications/flexisip,gale320/flexisip,gale320/flexisip