tree 227df44474f49c7acb04c7b8319426d1e1f89072
parent 031f06bbe40fc7c4bd3eb6f587a31ebab6081593
author ricolin <rlin@vexxhost.com> 1668380747 +0800
committer ricolin <rlin@vexxhost.com> 1668380747 +0800

Fix incremental backup retention

When backup expired, it will be deleted if no other backup depends on
it. Else, need to wait for all dependency expired and delete all
together.