I have my fleetsave routine configured to leave some ships on the moon. Since version 6.3 or 6.4 (can't remember which ), antigame started to send double fleets when using fleetsave routine: first, main fleet with all ships, then a second one with ships left behind according to routine config.
If I inspect my Firefox, network tab, it sends 2 XHR calls at the same time.
If I inspect my Firefox, network tab, it sends 2 XHR calls at the same time.