Ag -grid enterprise row grouping with checkbox selections, persisting state for database storage and retrival

[mrinalusp]

I'm submitting a ... (check one with "x")

[x ] bug report => search github for a similar issue or PR before submitting
[ ] feature request
[ ] support request => Please do not submit support request here, instead see https://github.com/ceolter/ag-grid-enterprise/blob/master/CONTRIBUTING.md#question

Current behavior For ag-grid-enterprise ,

1. I added a checkbox to group column
2. Checked the top level group row. (Checkbox is checked)
3. Expanded top level group row. (Checbox gets unchecked)

Expected behavior The state of checkbox selection should remain as is. No support found for checkboxes to be used with row grouping. No feature seems to be supported.

What is the motivation / use case for changing the behavior? We need row grouping with server side grid. State of selected row groups to be saved and retrived from database.

Please tell us about your environment: Windows, Angular 5,

• ag-Grid-Enterprise version: 2.0.X 19.0.0

• Browser: [all | Chrome Version 69.0.3497.100 (Official Build) (64-bit)

• Language: [all | TypeScript