Time charged before GPU assignment in zerogpu spaces

All zero-GPU spaces consume time even when no GPU is obtained. When a zero-GPU space is in the state “Waiting for a GPU to become available,” the user’s GPU time is already being charged. If you eventually get a GPU, it works as expected. However, if you don’t and the process ends with “No GPU was available for you,” the user’s time continues to be consumed for 60 seconds without ever reaching a GPU.