i test how child objects are affected when parent's tombstone is put to the storage engine

i expect that once tombstone is successfully put, all child objects are marked as garbage and after a certain time will be completely removed from storage

Expected Behavior

child objects are handled regardless of number of shards

Current Behavior

works as expected with single shard only. Multiple shards show flaky behavior. I guess outcome depends on sort order

the test may be wrong

Possible Solution

when tombstone arrives, show it to all shards

Steps to Reproduce (for bugs)

see storage engine unit tests in #3549

Context

• EC DELETE #3549
• Storage accepts tombstone targetting tombstone in multi-shard setup #3498

Regression

not likely

Your Environment

• Version used: https://github.com/nspcc-dev/neofs-node/releases/tag/v0.48.3