set original env as a base for LM env #708

Job	Run time
test-getting_started / tests	2m 18s
test-tutorials (configuration.ipynb) / tests	2m 14s
test-tutorials (debugging.ipynb) / tests	2m 18s
test-tutorials (describing_tasks.ipynb) / tests	3m 19s
test-tutorials (multiple_pilots.ipynb) / tests	3m 26s
test-tutorials (profiling.ipynb) / tests	2m 53s
test-tutorials (raptor.ipynb) / tests	2m 33s
test-tutorials (raptor_mpi.ipynb) / tests	4m 49s
test-tutorials (staging_data.ipynb) / tests	2m 52s
test-tutorials (submission.ipynb) / tests	1m 22s
	28m 4s

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