We will move much of the git code to synchronous execution. When the
git_extension_wrapper receives a new repository, the repository is most
likely not initialized yet. We can wait for the initialization with
repository.status().

VS Code keeps the case. I.e. it  correctly replaces
even getWorkspaceFolders.

The only places where we didn't replace the string were when
we were using the VS Code API (vscode.workspace.workspaceFolders).