this fixes a crash in bbb-html5 when someone uses phone dialin. The
crash resulted in users joining the audio convference but not being
visible in the users list.
Fixed stack trace:
~~~
error: UserJoinedVoiceConfToClientEvtMsg: Error: Match error: Missing key 'pin'
at check (packages/check/match.js:36:17)
at addUser (imports/api/users/server/modifiers/addUser.js:23:3)
at addDialInUser (imports/api/users/server/modifiers/addDialInUser.js:30:10)
at EventEmitter.handleJoinVoiceUser (imports/api/voice-users/server/handlers/joinVoiceUser.js:36:5)
at EventEmitter.emitAsync (/usr/share/meteor/bundle/programs/server/npm/node_modules/eventemitter2/lib/eventemitter2.js:463:31)
at MeetingMessageQueue.handleTask (imports/startup/server/redis.js:114:10)
at imports/startup/server/redis.js:126:28
at Queue.start (/usr/share/meteor/bundle/programs/server/npm/node_modules/queue/index.js:145:17)
at Queue.<computed> [as push] (/usr/share/meteor/bundle/programs/server/npm/node_modules/queue/index.js:59:12)
at MeetingMessageQueue.add (imports/startup/server/redis.js:125:16)
at RedisPubSub.handleMessage (imports/startup/server/redis.js:327:63)
at runWithEnvironment (packages/meteor.js:1320:24)
~~~
