[Session manager] Missing key and salt after flush and load

[peppelinux]

Once I flushed the session manager, sometimes, on the next request I miss key and salt.

INFO:oidc_provider.views:Request at the "userinfo" endpoint
[2021-05-18 08:20:15,588] Response params: {
  "email": "sdf@sdf.it",
  "sub": "a7b0dea2958aec275a789d7d7dc8e7d09c6316dd4fc6ae92742ed3297e14dded"
}
 [(DEBUG) oidc_provider.views.do_response:68]
DEBUG:oidc_provider.views:Response params: {
  "email": "sdf@sdf.it",
  "sub": "a7b0dea2958aec275a789d7d7dc8e7d09c6316dd4fc6ae92742ed3297e14dded"
}

[2021-05-18 08:20:15,590] Missing salt or key in session dump [(CRITICAL) oidc_provider.models.load:445]
CRITICAL:oidc_provider.models:Missing salt or key in session dump

It needs to be investigated more closely

[peppelinux]

fixed here: #65