The refactor provider for TypeScript uses the activeTextEditor's selection(https://github.com/Microsoft/vscode/blob/master/extensions/typescript-language-features/src/features/refactorProvider.ts#L131) to get the range instead of using the range that's passed in. This is problematic if the provider is invoked via an API. For eg, in a LiveShare guest session if the guest makes a selection, we would only get refactorings for the host's selection.

/cc @jrieken @kieferrm