Errors when formatting unsaved files

[vicary]

Describe the bug
When trying to format a new file in VS Code that is not yet saved to disk, deno formatter fails with the following error

Could not convert URL to file path.
  URL: file://untitled-2/.ts?scheme=untitled
[Error - 17:05:16] Request textDocument/formatting failed.
  Message: Invalid request
  Code: -32600 

To Reproduce

1. Create a new file in VS Code, do not save the file
2. Choose a Language Mode supported by Deno
3. Format document with Deno

Expected behaviour

Deno plugin correctly formats the unsaved file in place, similar to what VS Code's built-in language features do.

Screenshots

Versions

vscode: 1.95.2 deno: 2.0.6 extension: 3.42.0