Fixes broken requireDisplayName feature. It was asking for new display name even if we have had one configured already.
Fixes broken requireDisplayName feature.
It was asking for new display name even if we have had one configured already.

bgrozev/jitsi-meet,gpolitis/jitsi-meet,bgrozev/jitsi-meet,bickelj/jitsi-meet,tsareg/jitsi-meet,gpolitis/jitsi-meet,bgrozev/jitsi-meet,isymchych/jitsi-meet,jitsi/jitsi-meet,jitsi/jitsi-meet,bickelj/jitsi-meet,jitsi/jitsi-meet,gpolitis/jitsi-meet,tsareg/jitsi-meet,luciash/jitsi-meet-bootstrap,bgrozev/jitsi-meet,jitsi/jitsi-meet,bgrozev/jitsi-meet,IpexCloud/jitsi-meet,isymchych/jitsi-meet,gpolitis/jitsi-meet,pstros/jitsi-meet,jitsi/jitsi-meet,gpolitis/jitsi-meet,jitsi/jitsi-meet,IpexCloud/jitsi-meet,jitsi/jitsi-meet,gpolitis/jitsi-meet,bgrozev/jitsi-meet,gpolitis/jitsi-meet,jitsi/jitsi-meet,pstros/jitsi-meet,luciash/jitsi-meet-bootstrap,gpolitis/jitsi-meet