Tolerate parent cache with empty cache-artifact directory (#3240)
Tolerate parent cache with empty cache-artifact directory (#3240)

Signed-off-by: cevap <34c6fceca75e456f25e7e99531e2425c6c1de443@i2pmail.org>

ionomy/ion,ionomy/ion,ionomy/ion,ionomy/ion,ionomy/ion,ionomy/ion