src/vs/workbench/services/workingCopy/common/untitledFileWorkingCopy.ts/UntitledFileWorkingCopy/revert
class UntitledFileWorkingCopy:	async revert(): Promise<void> {
		this.trace('revert()');

		// No longer dirty
		this.setDirty(false);

		// Emit as event
		this._onDidRevert.fire();

		// A reverted untitled file working copy is invalid
		// because it has no actual source on disk to revert to.
		// As such we dispose the model.
		this.dispose();
	}