Coronavirus: cannot type country name

[systemcrash]

The problem

Typing the first few country letters to quickly find it in the drop-down list results in an error when finally selecting the country:

User input malformed

What is version of Home Assistant Core has the issue?

## System Health  version | core-2021.3.3 -- | -- installation_type | Home Assistant Container dev | false hassio | false docker | true virtualenv | false python_version | 3.8.7 os_name | Linux os_version | 4.4.59+ arch | x86_64 timezone | Europe/Stockholm  <details><summary>Home Assistant Community Store</summary>  GitHub API | ok -- | -- Github API Calls Remaining | 4990 Installed Version | 1.11.3 Stage | running Available Repositories | 746 Installed Repositories | 2  </details>  <details><summary>Home Assistant Cloud</summary>  logged_in | false -- | -- can_reach_cert_server | ok can_reach_cloud_auth | ok can_reach_cloud | ok  </details>  <details><summary>Lovelace</summary>  dashboards | 2 -- | -- resources | 0 views | 1 mode | storage  </details>

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant Container

Integration causing the issue

Link to integration documentation on our website

No response

Example YAML snippet

# Put your YAML below this line

Anything in the logs that might be useful for us?

# Put your logs below this line
No log errors. 

This regards this component:

https://github.com/home-assistant/core/tree/dev/homeassistant/components/coronavirus

[mib1185]

I have successfuly added 4 countries by each time starting to type in the first two letters and then clicked on the entry:

I can't reproduce the issue (MS Edge Chromium 89.0.774.50).

Which browser did you use?
Did you already tried to clear the browser cache?
Did you also tried different countries?
If issue is reproducible, than please provide some screenshots..

[systemcrash]

This only seemed to occur for the first country, yesterday, when first adding the integration. Adding subsequent countries was OK, I recall. Remove all your countries and the integration, then start a-fresh, and you might see the problem.

Firefox 86.0.1
Yes
Yes, subsequent countries don't complain.

Although currently I can continue beyond the error:

Here it is in action:

[mib1185]

OK ... after your screen capture I was able to reproduce it and also get the difference and cause.
In your workflow you are selecting the entry by hitting enter key (but by not by clicking on it) which already starts the input validation, but at this moment there are only first two letters "Sw" in input form which causes an validation error.

IMHO this is an frontend related issue, but not HA core, therefore please open an issue on https://github.com/home-assistant/frontend repository.

[systemcrash]

OK - thanks. I've opened an issue there. Please keep this issue open for the time-being.

[probot-home-assistant]

Hey there @home_assistant/core, mind taking a look at this issue as its been labeled with an integration (coronavirus) you are listed as a codeowner for? Thanks!
_{^{(message by CodeOwnersMention)}}

[probot-home-assistant]

coronavirus documentation
coronavirus source
_{^{(message by IssueLinks)}}

[frenck]

Looking at this issue, this is a pure frontend issue at this point, for which an issue is created.
There is no use in keeping this one open, as there is nothing that can be done from the backend perspective.

Closing it for that reason.