When linking Authors, also take into account the case when git id == full name

        // For each author that has its user avatar field set look for similar authors and fill mutually missing fields
        // using the following strategies:
        // - A - find other authors with the same id (but different emails)
        // - B - find other authors having an id matching the author name
        // - C - find other authors having the same name
        // - D - find other authors having the same email
        // - E - find other authors having a full name matching the id