1.修改iOS Apex Mobile Communitaction CC联系人选择。

Apex Mobile/Apex Mobile/DetailPageViewController.m

@@ -1881,7 +1881,7 @@
     }
     NSMutableDictionary* segment = [self.content.segments[indexPath.section] mutableCopy];
     NSString *oldCC = [segment objectForKey:@"cc"];
-    if (oldCC == nil) {
+    if (oldCC == nil || oldCC.length == 0) {
         oldCC = cc;
     } else {
         if ([[oldCC substringFromIndex:oldCC.length - 1] isEqualToString:@";"]) {