0.52.1

Fixed

• session start falls back to a private file when the keyring fails, and never asks (WC-SECR-4). It used to
  stop with sign-in.not-saved. Now it signs in, says once on stderr that it used the private file, records
  storage: "file" for the profile and answers it. --credential-storage file still chooses the file outright;
  the keyring is still the default and the safer choice. sign-in.not-saved now means the file cannot be read.