obs_sim.storage_max_p_absorb is None in sim2real env with Lightsim

[marota]

Environment

• Grid2op version: 1.9.4
• System: ubuntu 20.04.3 LTS, ...

Bug description

obs.storage_max_p_absorb attribute is None for a simulated obs when using a sim2real environment with LightSIm2grid backend

How to reproduce

Command line

# command line used if any 

Code snippet

from grid2op import make
from lightsim2grid import LightSimBackend

BACKEND = LightSimBackend
env=make("input_data_local_sim2real",backend=BACKEND()) #an env from sim2real track
obs,reward,done,info=env.step(env.action_space({}))
obs_simu,reward,done,info=obs.simulate(env.action_space({}),time_step=1)
assert(obs_simu.storage_max_p_absorb is not None)

I tried to reproduce also with env "l2rpn_case14_sandbox_diff_grid" but I don't get this behavior probably because there are no storage in the first place on that grid

Current output

obs_simu.storage_max_p_absorb is None

Expected output

obs_simu.storage_max_p_absorb should be the same as obs.storage_max_p_absorb

[marota]

obs.storage_Emax is also impacted for simulation obs

[BDonnot]

fixed in version 1.9.5 (released a few minutes ago)