replace invalid utf8 chars in text messages

csgo/demo_parser.go

@@ -17,6 +17,7 @@ import (
 	log "github.com/sirupsen/logrus"
 	"io"
 	"net/http"
+	"strings"
 	"time"
 )
 
@@ -563,7 +564,7 @@ workloop:
 			var bulk []*ent.MessagesCreate
 			for _, msg := range tMatchPlayer.Edges.Messages {
 				bulk = append(bulk, tx.Messages.Create().
-					SetMessage(msg.Message).
+					SetMessage(strings.ToValidUTF8(msg.Message, "")).
 					SetAllChat(msg.AllChat).
 					SetTick(msg.Tick).
 					SetMatchPlayer(tMatchPlayer))