Fix resolution of Jujutsu workspace parents with relative paths.
Review Request #15000 — Created April 2, 2026 and updated — Latest diff uploaded
One of my newly-created Jujutsu workspaces had a relative path in the
repofile. This was causing it to recognize the jj repository but was
unable to resolve the git storage. This change makes it so we check if
it's relative or absolute, and if relative, resolve that.
Was able to post changes out of the workspace with the relative path in
repo.