MudAutocomplete: Fix item selection stealing focus back after handler completes

[danielchalmers]

Description

Fixes #11473.

We were previously focusing the input AFTER handling the option selected logic, meaning that a lengthy handler would cause the component to steal the focus back after it's finished. Now we give it focus BEFORE so it only has it immediately after choosing the option and closing the menu.

How Has This Been Tested?

visually

Type of Changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation (fix or improvement to the website or code docs)

Checklist

• The PR is submitted to the correct branch (dev).
• My code follows the code style of this project.
• I've added relevant tests.

[danielchalmers]

@beckerrobin let me know if this fix helps!

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.14%. Comparing base (774ed5d) to head (02553e4).
Report is 7 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev   #11482      +/-   ##
==========================================
- Coverage   91.15%   91.14%   -0.02%     
==========================================
  Files         466      466              
  Lines       14453    14470      +17     
  Branches     2800     2802       +2     
==========================================
+ Hits        13175    13188      +13     
- Misses        641      643       +2     
- Partials      637      639       +2     

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Pull Request Overview

This PR fixes a focus issue in MudAutocomplete by ensuring the input regains focus before executing the option selection logic, preventing the component from stealing back focus after a long-running handler.

• Reordered SelectOptionAsync(item) to run after setting focus
• Ensured _handleNextFocus flag is set once, before focusing
• Minor formatting adjustment (blank line added)

Comments suppressed due to low confidence (1)

src/MudBlazor/Components/Autocomplete/MudAutocomplete.razor.cs:1203

• Consider adding a unit or integration test to verify that the input is focused before the selection logic executes, ensuring this focus-behavior fix doesn’t regress in the future.

await FocusAsync();