[ui5-combobox]: can't focus item in dropdown

[nnaydenow]

Bug Description

If there is only 1 item in combobox's dropdown and arrow down is clicked the item cannot be focused

Affected Component

ui5-combobox

Expected Behaviour

To move focus to the first element inside dropdown

Isolated Example

https://ui5.github.io/webcomponents/play/#eNq9U1Fr2zAQ_iuqntoQRRljMFxnbM062NMG6x4GfpGtS6xOlowkJw4h_30n2R4uW8uehg32fXf33d2n05kqI6Ff1aHRNDtTIxqg2Rxc0sqaACYgnF8xRlotTntnOyPZzmpJGHtXmPzq45ftw4-v9yQmRSB-iRZmvykomIIiNjx5DUKiRfDNfThpiMYiMzZcZxJ2yoC8IWfEpPKxWEaMNXCLwCXmpwrJv7OuAskqq61jQj52PjyJJTmf-P9_ubyBIEhVC-choAbfHz6xt0mG0RWlRvyg4NhaFwpKRqERPCoZ6o2Eg6qAJWNJlFFBCc18JTRsXq3WI1lQAWt-E02rIeeDhSrzUWb8La08kdQaUpei-jkeX5okIwfhrhnzor377dpGz80tqUHta5zy9Xrd9mO9v-wAAzPuQQzo1Bukbkpb2j5GVlBjDDgsfo8DOiyoOxjZUnDJVICGBOjj8B9QWKcEBuR85k7hfE7-XDtDK3jalVNtIOHUxsEbKzuNZYl3VTSFMqtHn6oMgUm1qNWgGp82-cWB6WU5Uc3uz4TMLw9fzFlqJYEseGFUE0-fFHTFZ27ftRFODeJ6_ZmbOniS_x6l4UcoUZ0Wl9IEz3GjA99Gte5sP3H9c8JnFH1IopfLL1dgcXc

Steps to Reproduce

1. Focus combobox
2. Start typing Austria
3. Press arrow down
   ...

Log Output, Stack Trace or Screenshots

No response

Priority

None

UI5 Web Components Version

nightly

Browser

Chrome

Operating System

No response

Additional Context

No response

Organization

No response

Declaration

• I’m not disclosing any internal or sensitive information.

[NHristov-sap]

Hi @UI5/ui5-team-ctr-ril ,

The issue is reproducible by following the steps provided by the reporter, please take a look of this issue.

Best Regards,
Nikolay Hristov