Fails with object-format=sha256 repos

[dbast]

cmd: git rebase -i origin/main

error:

hint: Waiting for your editor to close the file... Unable to load Git repository: Could not open repository from environment
error: there was a problem with the editor 'interactive-rebase-tool'

object-format=sha256 repos can be created via git init --object-format=sha256 or created+cloned from Gitlab/Gitea/Forgejo.