Kendo-angular: Labelling when filtering on grouped MultiSelect component

[Baffour]

Describe the bug
When using a MultiSelect component with grouping and filtering, if you start typing to filter the available items, the group labels do not update until you scroll, meaning the grouping label is wrong

To Reproduce
Steps to reproduce the behavior:
See the runnable snippet here: https://stackblitz.com/edit/angular-b94cce

1. Click into multi-select input box
2. Start typing "Mystery"

Expected behavior
You should see "Food Subcategory" as the group label, since the only option in "Food Category" has been filtered out.
Instead, I you still see "Food Category".
Scrolling down the list causes the group label to update correctly, so I imagine whatever is running on the scroll event to update the labels should also be running on a filter change event.

Screenshots

Browser

• OS: Windows
• Browser: Chrome
• Version: 71

Additional context
None

[Baffour]

Hi @dimitar-pechev, any update on this?

[dimitar-pechev]

@Baffour, sorry for the delayed response and thanks for the good reproduction example.

We have the code fix in place and we'll look to introduce it next week.

[Baffour]

@dimitar-pechev Hi dimitar, what's the status of the issue? I noticed a new release of the Kendo UI for angular but I can still reproduce the issue in the newest version.

[dimitar-pechev]

The fix has been included in the latest dev version of the @progress/kendo-angular-dropdowns package (v3.5.5-dev.201905211245).

[Baffour]

@dimitar-pechev Thanks, can confirm the fix works in my code as well as my stackblitz reproduction!

[dimitar-pechev]

Shipped in @progress/[email protected].