Previously after split we can get two `null` versioned object with the same key
and deleting such key removes only one node/object.
Signed-off-by: Denis Kirillov <d.kirillov@yadro.com>
Previously if multipart key has the same name as some system node
(e.g. bucket-settings, bucket-cors etc.) it shadows real system node
and bucket started to be unversioned again for example.
Signed-off-by: Denis Kirillov <d.kirillov@yadro.com>
Update tree service to fix split tree problem.
Tree intermediate nodes can be duplicated, so we must handle this.
Signed-off-by: Denis Kirillov <d.kirillov@yadro.com>