Summary:
Searching for the commit hash in the “Search for code or repositories…” bar should also return search results whose commit hash matches.

Expected flow:
1) I have a commit hash
2) Paste the commit hash into the Bitbucket search box on the top right
3) Get a result to take you to the commit and/or the project the commit hash belongs to.

In the case of collision, just show all matching ones respecting repository access permissions.

Impact:
Our regression and QA team often times will have to bisect regressions. When doing so the only information available at the time is a hash. Bitbucket should make it easy to find out commit information about this hash without needing a checkout of the codebase.