### Problem to solve Allow user to find commit in Git repositories, when user knows hash (SHA) of target commit, like `448c19a` (e.g. from error message in deployed software), but doesn't know in which repositories to look for it. ### Proposal Implement a search by commit hash in Git repositories that are available to the user for reading. User should be able to search by both short (like `448c19a`) and full (like `448c19aab1689ef43658a1f0fa0315e206ae895f`) hash form. ### Reference This FR is akin to #442009 FR. This FR is similar to https://gitlab.com/gitlab-org/gitlab-foss/-/issues/24833, which was closed via merge request 7 years ago, but not implemented for now.