src/vs/workbench/contrib/mergeEditor/browser/view/editors/inputCodeEditorView.ts/ModifiedBaseRangeGutterItemModel/toggleBothSides
class ModifiedBaseRangeGutterItemModel:	public toggleBothSides(): void {
		transaction(tx => {
			/** @description Context Menu: toggle both sides */
			const state = this.model
				.getState(this.baseRange)
				.get();
			this.model.setState(
				this.baseRange,
				state
					.toggle(this.inputNumber)
					.toggle(this.inputNumber === 1 ? 2 : 1),
				true,
				tx
			);
		});
	}