Note that there exists multiple ways to continue to lookup SHA1s in a SHA256 repo.
One example is to maintain git-replace refs for the rewritten SHAs but there also exist config flags to enable object format compatibility extensions that help translate the SHAs back and forth.
One example is to maintain git-replace refs for the rewritten SHAs but there also exist config flags to enable object format compatibility extensions that help translate the SHAs back and forth.
https://git-scm.com/docs/git-replace