Typescript Language Server dies whenever a Pull Request file diff is open

[Ben Nelson]

When viewing a PR in VSCode with the atlascode extension, if the project is a typescript project, whenever a diff is open the typescript language server repeatedly errors and eventually crashes with

The TypeScript language service died unexpectedly 5 times in the last 5 Minutes.

This affects not only the tab with the diff, but all the tabs of the VSCode instance, so no intellisense can occur as long as the diff tab is open.

I'm not 100% sure if this is an issue for the language server itself or this extension.