修复成员进群后第一次发言触发改名事件 (#475)

* 解决最后一个mirai码之后的消息无法解析的问题

* 修复成员进群后第一次发言触发改名事件
Co-authored-by: caihongming <caihongming@iboxpay.com>

mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/chat/receive/MessageSvc.PbGetMsg.kt

@@ -121,7 +121,8 @@ internal object MessageSvcPbGetMsg : OutgoingPacketFactory<MessageSvcPbGetMsg.Re
 
     private fun MsgComm.Msg.getNewMemberInfo(): MemberInfo {
         return object : MemberInfo {
-            override val nameCard: String get() = ""
+            override val nameCard: String get() = msgHead.authNick.takeIf { it.isNotEmpty() }
+                ?: msgHead.fromNick
             override val permission: MemberPermission get() = MemberPermission.MEMBER
             override val specialTitle: String get() = ""
             override val muteTimestamp: Int get() = 0