src/vs/workbench/contrib/mergeEditor/browser/view/viewModel.ts/MergeEditorViewModel/setState
class MergeEditorViewModel:	public setState(
		baseRange: ModifiedBaseRange,
		state: ModifiedBaseRangeState,
		tx: ITransaction,
		inputNumber: InputNumber,
	): void {
		this.manuallySetActiveModifiedBaseRange.set({ range: baseRange, counter: this.counter++ }, tx);
		this.model.setState(baseRange, state, inputNumber, tx);
	}