src/vs/workbench/contrib/output/electron-sandbox/outputChannelModelService.ts/OutputChannelBackedByFile/resetModel
class OutputChannelBackedByFile:	private resetModel(): Promise<void> {
		this.startOffset = 0;
		this.endOffset = 0;
		if (this.model) {
			return this.loadModel().then(() => undefined);
		}
		return Promise.resolve(undefined);
	}