src/vs/workbench/services/workingCopy/common/workingCopyBackupTracker.ts/WorkingCopyBackupTracker/resolveBackupsToRestore
class WorkingCopyBackupTracker:	private async resolveBackupsToRestore(): Promise<void> {

		// Wait for resolving backups until we are restored to reduce startup pressure
		await this.lifecycleService.when(LifecyclePhase.Restored);

		// Remember each backup that needs to restore
		for (const backup of await this.workingCopyBackupService.getBackups()) {
			this.unrestoredBackups.add(backup);
		}

		this._isReady = true;
	}