src/vs/workbench/contrib/mergeEditor/browser/utils.ts/PersistentStore/get
class PersistentStore:	public get(): Readonly<T> | undefined {
		if (!this.hasValue) {
			const value = this.storageService.get(this.key, StorageScope.PROFILE);
			if (value !== undefined) {
				try {
					this.value = JSON.parse(value) as any;
				} catch (e) {
					onUnexpectedError(e);
				}
			}
			this.hasValue = true;
		}

		return this.value;
	}