Reset function in BraxAutoResetWrapper

[btaba]

Discussed in #175

^{Originally posted by bkpcoding July 24, 2025}
Hello, the auto-reset wrapper used in the mujoco playground seems to use the same initial state for every reset. I was interested if there was a specific reason for this? Because in some of my experiments with FastTD3 as shown below resetting the environments to random states performs much better than resetting to initial state. Thank you!!