Hello David,
I agree this is a valid feature request, so I changed its status to "Unplanned".
In the meantime, here is the link to Telerik REPL for Blazor with a workaround. I link it here for better visibility.
It uses a JavaScript function that you can call through JS Interop, which will remove all previously selected files.
Note that I set a custom CSS Class for the FileSelect to avoid conflicts if someone has multiple FileSelect or Upload components on the page.
The suppress-error="BL9992" attribute is not necessary if the JavaScript is in a proper place in the app.
Regards,
Apostolos
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