fix(hierarchical-grid): align selected data with expanded row indexes - 21.2.x#17300

kacheshmarova merged 7 commits into

21.2.xIgniteUI/igniteui-angular:21.2.xfrom

ganastasov/fix-17295-21.2.xIgniteUI/igniteui-angular:ganastasov/fix-17295-21.2.xCopy head branch name to clipboard