eyaml and yaml backend does not looks to manage puppet data type in a same manner

Acceptance tests works without any error.

But on nodes the following error message appears :

Restic::Backup[allgeryon]: parameter 'inodes' index 0 expects a match for Variant[Stdlib::Windowspath = Pattern[/^(([a-zA-Z]:[\\\/])|([\\\/][\\\/][^\\\/]+[\\\/][^\\\/]+)|([\\\/][\\\/]\?[\\\/][^\\\/]+))/], Stdlib::Unixpath = Pattern[/^\/([^\/\0]+(\/)?)+$/]], got '/' at ... modules/restic/manifests/backups.pp:5

Only one difference found, the back-end used in tests and in production.

The hiera data about node was :

base_backup::backups:
  allgeryon:
    runasuser: 'todobackups'
    repository_url: '/var/resticbackups/mainrepo'
    repository_password: >
      ENC[PKCS7,MIIBmQYJKoZIhvcNAQcDoIIBijCCAYYCAQAxggEhMIIBHQIBADAFMAACAQEw
                        --- 8X ---
      brsIgDAtbfLquQtZQNKFdAZgeJGcpXb5RYZrzhvpybk9H3S+nuwlOYV2cKTh
      N3JWcu/5F7Y=]
    at:
      frequency: 'weekly'
      excludes:
        - '/var/cache'
        - '/sys'
        - '/proc'
        - '/mnt'