Unexpected behavior when filtering in checkbox grouped tables

[TilmannF]

Issue Type

• Bug

Specs

Version: 2.21.8
Browser: Chrome 89.0.4389.82

Expected Behavior

When activating a filter on a checkbox table with groups and filters, the groups, which don't have a result, should not be visible.

Actual Behavior

When I activate a filter on a checkbox table with groups and filters, the groups, which shouldn't occur in the result, are still shown AND selected.

Steps to Reproduce the Problem

1. Open the example
2. Search for "susan" in the name column

jsfiddle

Example