技术沙龙：Ratf新主怎么处理上一任没有提交的记录

[watchpoints]

https://zhuanlan.zhihu.com/p/268299972

[watchpoints]

https://arthurchiao.art/blog/raft-paper-zh/

[watchpoints]

https://ilovecpp.applinzi.com/2022/03/01/raft-prevlog-commit/