fetchProfileBlock会被重复调用

[ghost]

Base Info for this issue

1. ChatKit Version：0.8.14
2. App-ID: XX
3. Language：Swift
4. iOS System Version：iOS10
5. Prototype（是否是真机）：YES
6. Q-A 为什么conversation只有两个成员的时候，fetchProfileBlock会被调用十几次，其中一个成语的id会重复出现

1. How to repeat the problem.

LCChatKit.sharedInstance().fetchProfilesBlock = {
            userIds, completionHandler in
            
            guard let userIds = userIds else {
                completionHandler?(nil, nil)
                return
            }
            
            var users = [LCCKUser]()
            let query = AVQuery(className: "_User")
            
            print("userIDs: \(userIds)")
            for userId in userIds {
                query.whereKey("username", equalTo: userId)
                guard let object = query.getFirstObject() as? AVUser else {
                    completionHandler?(nil, nil)
                    return
                }
                let user = LCCKUser(userId: object.value(forKey: "nickname") as! String!, name: object.value(forKey: "nickname") as! String!, avatarURL: URL(string: AVUser.current()?.value(forKey: "avatarURL") as! String))
                users.append(user!)
            }
            
            completionHandler?(users, nil)
        }

结果是： userIDs: ["ha_pku_edu", "achen_pku_edu""] successfully fetched conversation userIDs: ["achen_pku_edu"] userIDs: [""achen_pku_edu""] userIDs: ["achen_pku_edu"] userIDs: ["achen_pku_edu"] userIDs: ["achen_pku_edu"] userIDs: ["achen_pku_edu"] userIDs: ["achen_pku_edu"] userIDs: ["achen_pku_edu"] userIDs: ["achen_pku_edu"] userIDs: ["achen_pku_edu"] userIDs: ["achen_pku_edu"]

[Flum-X]

解决了吗，我目前也遇到这个问题