Bad Diff: Incorrectly matched original and modified

[benibenj]

Description

Expected the following original and modified lines to be matched with each other:

• Original: protected abstract createModel(user: string, view: ISpliceable<ITreeNode<T, TFilterData>>, options: IAbstractTreeOptions<T, TFilterData>): ITreeModel<T, TFilterData, TRef>;
• Modified: protected abstract createModel(user: string, options: IAbstractTreeOptions<T, TFilterData>): ITreeModel<T, TFilterData, TRef>;

Playground Example

Monaco Editor Playground Repro (click on "use latest dev" to verify a future bug-fix)