fix prev button for replay of puzzle mode (#2716)

gframe/duelclient.cpp

@@ -3868,7 +3868,9 @@ bool DuelClient::ClientAnalyze(unsigned char* msg, int len) {
 		break;
 	}
 	case MSG_RELOAD_FIELD: {
-		mainGame->gMutex.lock();
+		if(!mainGame->dInfo.isReplay || !mainGame->dInfo.isReplaySkiping) {
+			mainGame->gMutex.lock();
+		}
 		mainGame->dField.Clear();
 		mainGame->dInfo.duel_rule = BufferIO::ReadUInt8(pbuf);
 		int val = 0;
@@ -3974,7 +3976,9 @@ bool DuelClient::ClientAnalyze(unsigned char* msg, int len) {
 			myswprintf(event_string, dataManager.GetSysString(1609), dataManager.GetName(mainGame->dField.current_chain.code));
 			mainGame->dField.last_chain = true;
 		}
-		mainGame->gMutex.unlock();
+		if(!mainGame->dInfo.isReplay || !mainGame->dInfo.isReplaySkiping) {
+			mainGame->gMutex.unlock();
+		}
 		break;
 	}
 	}