Add correct reaction to config reload

[CondensedTea]

Current:

time="2021-09-26T15:19:44Z" level=info msg="L 09/26/2021 - 18:19:44: server_cvar: \"tftrue_whitelist_id\" \"etf2l_whitelist_6v6\"" pickup_id=357 server="ru#2" state=Game
time="2021-09-26T15:19:44Z" level=info msg="L 09/26/2021 - 18:19:44: Log file closed." pickup_id=357 server="ru#2" state=Game
time="2021-09-26T15:19:45Z" level=fatal msg="Failed to upload file to logs.tf: logs.tf returned code: 500, body: {\n  \"success\": false, \n  \"error\": \"Log has no full rounds\"\n}\n" server="ru#2"

Should be:
Skip upload, flush buffer, keep the map and pickupID, change state to Pregame