Display user name when it's different from their git config in commit list filtered search

Summary

Commit list search doesn't return a commit made with the same user, when the display name doesn't match the git config

Context

This issue was reported in the current commit list #431628 (comment 2654906444), pre Refactor repository Commit list (&17482). We need a path forward to address in the new implementation

Step to reproduce

• Push a commit
• Update display name to something different from the git config
• Try to search for the commit with the new display name
• Returns no results