[Combobox] Resetting to value in some occasions

[obarcelonap]

Bug Report

Current Behavior

When a value in the combobox has been selected, after deleting the value having pressed the delete key it some occasions it resets the value to other one, hidding the autocompletion.

Expected Behavior

I'd expect the value is selected (bold font) but still the autocompletion panel is opened and showing more options (if there's more)

Possible Solution

Might be related to debouncing and performing async operations for retrieving the different options considering the input.

Steps to Reproduce

Reproducible here: https://stackblitz.com/edit/dtcombobox
Screen recording: Screen Recording 2020-08-04 at 10.10.45.zip

1. select a value
2. delete the value keeping the delete key pressed
3. sometimes the value gets reset

[tomheller]

Thank you for reporting this one. this seems like a really weird behaviour.

[lukett89]

Hi guys, the same reset issue can still be reproduced by following these steps:

1. Open combobox demos example (default selection: Value 1)
2. Click on Value 1 option
3. Reset event is sent

OR

1. Show option suggestions
2. Move the focus out from the input without selecting any option
3. Reset event is sent