Link to author profile not working when config.json not provided

[ccyccyccy]

When group by Author and merge group is selected, the author profile linked by the octocat icon is shown. However, when config.json is not provided by the target repo, the hyperlink does not work.

This is due to the name of the author being the same as the displayName of the author when the config file is not provided, where the name is supposed to be the github id of the author.

[HCY123902]

Actually, is there a way to reproduce this now? I think currently the profile can still be accessed even if the configuration file is not provided

[gerhean]

Suspect is the same issue as #1484