Memory leaks when expanding #138
Description
Problem
When expanding and hiding tree nodes, number of nodes and size of js heap only grows.
Reporduction
Can be reproduced on base example in storybook: https://preview.gravity-ui.com/table/?path=/story/basetable--tree or https://preview.gravity-ui.com/table/?path=/story/table--tree
js heap manages to be cleaned, but nodes counter only grows