Studio: Re-selecting the same file doesn't trigger the import

[katinthehatsite]

Related issues

Fixes STU-1381

How AI was used in this PR

Not used, it is a simple fix

Proposed Changes

This PR ensures that when you use an Import option in Studio and select the same file after cancelling the import with that file once, the state is reset and the import can be initiated.

Testing Instructions

• Pull the changes from this branch
• Start Studio with npm start
• Navigate to Import tab
• Select a file for import
• Cancel import
• Select the same file for import again
• Confirm that the import can be started

Pre-merge Checklist

• Have you checked for TypeScript, React or other console errors?

[wpmobilebot]

📊 Performance Test Results

Comparing 6eda568 vs trunk

site-editor

Metric	trunk	6eda568	Diff	Change
load	1800.00 ms	1770.00 ms	-30.00 ms	⚪ 0.0%

site-startup

Metric	trunk	6eda568	Diff	Change
siteCreation	6102.00 ms	6150.00 ms	+48.00 ms	⚪ 0.0%
siteStartup	3940.00 ms	3942.00 ms	+2.00 ms	⚪ 0.0%

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Results are median values from multiple test runs.

Legend: 🟢 Improvement (faster) | 🔴 Regression (slower) | ⚪ No change (<50ms diff)

[epeicher]

Thanks for the fix Kat! I have tested it, and I can confirm that it fails in trunk and it works as expected on this branch. LGTM!

[katinthehatsite]

Thanks for the review and merging the PR 👍