Document update conflict upon login

Hey @fynnlyte,

I'm facing an issue where a user login fails with an internal server error. Upon inspecting the case I found that the /auth/login route repsonds with an error message which seems to be an upstream 409 error from CouchDB.

Here's the anonymised response I receive when trying to login with the given credentials (status 500):

{
  "scope": "couch",
  "statusCode": 409,
  "request": {
    "method": "post",
    "headers": {
      "content-type": "application/json",
      "accept": "application/json",
      "user-agent": "XXXXXX",
      "Accept-Encoding": "deflate, gzip"
    },
    "auth": {
      "username": "XXXXXX",
      "password": "XXXXXX"
    },
    "qsStringifyOptions": {
      "arrayFormat": "repeat"
    },
    "url": "http://localhost:5984/_users",
    "paramsSerializer": {},
    "data": "{\"_id\":\"org.couchdb.user:XXXXXX\",\"type\":\"user\",\"name\":\"XXXXXX\",\"user_uid\":\"XXXXXX\",\"user_id\":\"XXXXXX\",\"expires\":123456789,\"roles\":[\"XXXXXX\",],\"provider\":\"local\",\"password_scheme\":\"pbkdf2\",\"iterations\":10,\"salt\":\"XXXXXX\",\"derived_key\":\"XXXXXX\"}",
  },
  "errid": "non_200",
  "name": "Error",
  "description": "Document update conflict.",
  "error": "conflict",
  "reason": "Document update conflict."
}

I know the user tried to reset their password, which they said didn't work. I then reset their password to a default password using the changePassword method. This seemed to work (got no errors), but now it seems the internal state of this users doc is broken.

Any idea of this can be fixed? Thanks a lot for your help!

perfood / couch-auth

Document update conflict upon login #83