fix mamoe/mirai#472: group.quit() not working

fix issue of multi msg cannot view on phone.

* 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>

# Conflicts:
#	gradle.properties

This reverts commit b320d2ca

# Conflicts:
#	mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/chat/receive/OnlinePush.PbPushGroupMsg.kt