src/vs/workbench/contrib/search/common/cacheState.ts/FileQueryCacheState/isUpdating
class FileQueryCacheState:	get isUpdating(): boolean {
		const isUpdating = this.loadingPhase === LoadingPhase.Loading;

		return isUpdating || !this.previousCacheState ? isUpdating : this.previousCacheState.isUpdating;
	}