Method revert

src/actions/Clear.ts:39–45

()

	}

	override async revert(): Promise<void> {
		const last = this.engine.history('clear').pop();

		if (last === 'nvl') {
			this.engine.global('_should_restore_nvl', true);
		}
	}

	override async didRevert(): Promise<ActionRevertResult> {
		return { advance: true, step: true };