Add handling for an expired token on Bitbucket while fetching user information

[wissem]

In case there is an empty email with Bitbucket and there is an attempt to fetch the linked emails. There is a second request to emails_url that could fail in case the token is expired. This results into an undefined index warning while accessing values and the user information missing the email.

I've added a refresh for the token and attempting to fetch emails again.