Honor `--initial` after a crash

[renecannao]

If you are submitting a reproducible bug report, please provide:

• [ ] A clear description of the issue

--initial is ignored after a crash. This is by design: --initial just cause the rename of proxysql.db during the initial start. Although it seems reasonable that after a crash the same logic is implemented.

• [ ] ProxySQL version

All up to latest (2.7.0)

• [ ] OS version

All

• [ ] The steps to reproduce the issue

  • start proxysql in background , with --initial
  • update the config file
  • crash it (kill it with -6 or -9)
  • proxysql will now have outdated configuration

• [ ] Possible solution Rename logic (see https://github.com/sysown/proxysql/blob/v2.7.0/src/main.cpp#L715-L720) should be implemented also during restart in https://github.com/sysown/proxysql/blob/v2.7.0/src/main.cpp#L1469-L1478