When using study_OAR locally, melissa_server doesn't restart

Summary

When running heat_example simulation using study_OAR in local (virtual cluster) environment, after melissa_server reaches it's walltime, it cannot restart propperly.

Steps to reproduce

Install dependencies
git clone https://gitlab.inira.fr/melissa/melissa
If !1 is not merged to master yet
- cd melissa && git checkout study_OAR-Dockerfile-fix && cd ..
Run melissa-setup.sh in current folder by running source melissa-setup.sh
Change WALLTIME_SERVER or STUDY_OPTIONS['sampling_size'] in /home/docker/melissa/oar-install/share/melissa/examples/heat_example/study_OAR/options.py so that melissa_server gets terminated before finishing the whole simulation
Run cd /home/docker/melissa/oar-install/share/melissa/examples/heat_example/study_OAR/ && melissa_launcher -o options.py 2>&1 1>/dev/null &

What is the current bug behavior?

After the first melissa_server hits walltime, melissa_launcher cannot restart it. According to the logs, melissa_server cannot open ./simu_0.data. When watching workdir for files I couldn't find any files like this.

What is the expected correct behavior?

Melissa_server restarts properly and simulations continues.

Relevant logs and/or screenshots

logs_and_workdir_from_melissa.tar.gz

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