Initialize and reset unseen property. Fix wrong property assignment.

lib/imap.js

@@ -71,7 +71,7 @@ function ImapConnection (options) {
       keywords: [],
       permFlags: [],
       name: null,
-      messages: { total: 0, new: 0 }
+      messages: { total: 0, new: 0, unseen: 0 }
     },
     ext: {
       // Capability-specific state info
@@ -468,7 +468,7 @@ ImapConnection.prototype.connect = function(loginCb) {
               self.emit('alert', m[3]);
             else if (state.status === STATES.BOXSELECTING) {
               if (m = /^UNSEEN (\d+)/i.exec(code))
-                state.box.unseen = m[1];
+                state.box.messages.unseen = parseInt(m[1], 10);
               else if (m = /^UIDVALIDITY (\d+)/i.exec(code))
                 state.box.uidvalidity = m[1];
               else if (m = /^UIDNEXT (\d+)/i.exec(code))
@@ -1244,6 +1244,7 @@ ImapConnection.prototype._resetBox = function() {
   this._state.box.name = null;
   this._state.box.messages.total = 0;
   this._state.box.messages.new = 0;
+  this._state.box.messages.unseen = 0;
 };
 
 ImapConnection.prototype._noop = function() {