is geodesic expected to keep aws-vault credentials in between sessions?

localhost $> geodesic
geodesic $> export AWS_VAULT_BACKEND=file
geodesic $> aws-vault list # as i expected, returns one profile that has no credentials and no sessions
geodesic $> aws-vault add wispmaster.root # "Added credentials to profile "wispmaster.root" in vault
geodesic $> aws-vault list # as i expected, returns one profile that has credentials but no sessions
geodesic $> exit
localhost $> geodesic
geodesic $> export AWS_VAULT_BACKEND=file
geodesic $> aws-vault list # not what i expect ... returns one profile that has no credentials and no sessions

i would think that geodesic would maintain the aws-vault credentials from one session to the next.