Sending nick out of sequence can cause exceptions

[qq99]

Here's a sample stream:

25 May 21:10:00 - SEND: NICK echoplexion                                        
25 May 21:10:00 - SEND: USER echoplexus using nodebot 8 * :echoplexus IRC proxy 
25 May 21:10:00 - SEND: NICK Anonymous                                          
25 May 21:10:01 - Unhandled message: { prefix: 'leguin.freenode.net',           
  server: 'leguin.freenode.net',                                                
  command: 'rpl_luserunknown',                                                  
  rawCommand: '253',                                                            
  commandType: 'reply',                                                         
  args: [ 'echoplexion', '10', 'unknown connection(s)' ] }                      
25 May 21:10:01 - SEND: JOIN #javascript                                        
25 May 21:10:01 - MODE:echoplexion sets mode: +i                                
25 May 21:10:06 - SEND: NICK echoplexion1                                       
25 May 21:10:06 - Unhandled message: { prefix: 'leguin.freenode.net',           
  server: 'leguin.freenode.net',                                                
  command: '470',                                                               
  rawCommand: '470',                                                            
  commandType: 'normal',                                                        
  args:                                                                         
   [ 'echoplexion',                                                             
     '#javascript',                                                             
     '##javascript',                                                            
     'Forwarding to another channel' ] }                                        
>> /echoplexus/node_modules/irc/lib/irc.js:637                                  
>>                     throw err;                                               
>>                           ^                                                  
>> TypeError: Cannot read property 'users' of undefined                         
>>   at Client.<anonymous> (/echoplexus/node_modules/irc/lib/irc.js:412:28)     
>>   at Client.EventEmitter.emit (events.js:95:17)                              
>>   at /echoplexus/node_modules/irc/lib/irc.js:634:22                          
>>   at Array.forEach (native)                                                  
>>   at Socket.<anonymous> (/echoplexus/node_modules/irc/lib/irc.js:631:15)     
>>   at Socket.EventEmitter.emit (events.js:95:17)                              
>>   at Socket.<anonymous> (_stream_readable.js:746:14)                         
>>   at Socket.EventEmitter.emit (events.js:92:17)                              
>>   at emitReadable_ (_stream_readable.js:408:10)                              
>>   at emitReadable (_stream_readable.js:404:5)                                
>>   at readableAddChunk (_stream_readable.js:165:9)                            
>>   at Socket.Readable.push (_stream_readable.js:127:10)                       
>>   at TCP.onread (net.js:526:21)                                              

If I remove any call to client.ircClient.send "NICK", nick it's all good. I believe it's be cause I'm not properly connected yet before I try to send the nick

[qq99]

Further, seems to be related to me being banned on the channel. line 433 presents a similar error