[stable18] fix s3 doesDirectoryExist check for empty directories#22777

Merged

rullzer merged 2 commits intostable18from

backport/22747/stable18

Sep 11, 2020

Commits on Sep 10, 2020

fix s3 doesDirectoryExist check for empty directories

icewind1991
authored and
backportbot[bot]
committed
Set delimiter so that the CommonPrefixes response can properly be determined

juliusknorr
authored and
backportbot[bot]
committed