Why need two terminal flags in a trajectory?

[ChenDRAG]

I have been looking into the code and notice this part of the code

VEM/main.py

Line 149 in 801af65

elif truly_dones[-1] == True:

Seems that, this "if" part add an extra "terminal" flag to the trajectory, which is very confusing, can you explain the reason why you do that?

Also could you please provide the temperature parameter beta used for the paper (default to 100 in the code) since it's missing in the ICLR paper. My reproduction of the experiment doesn't match results reported in the paper and I think this might be the reason.