handle player loading flag more cautiously

src/main.c

@@ -382,6 +382,14 @@ void handlePacket (int client_fd, int length, int packet_id, int state) {
       if (state == STATE_PLAY) cs_playerInput(client_fd);
       break;
 
+    case 0x2B: // Player Loaded
+      PlayerData *player;
+      if (getPlayerData(client_fd, &player)) break;
+      // Clear "client loading" flag and fallback timer
+      player->flags &= ~0x20;
+      player->flagval_16 = 0;
+      break;
+
     case 0x34:
       if (state == STATE_PLAY) cs_setHeldItem(client_fd);
       break;