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>
When the object version is received,
the node of the secondary object may return.
Now we choose the right node ourselves.
Signed-off-by: Roman Loginov <r.loginov@yadro.com>
