`proxy+page.server.ts` files break refactoring/renaming (F2 in VS Code)

Describe the bug

If a +page.server.ts is affected by a refactor (i.e. it imports a refactored module), VS Code tries to do the respective changes also in the proxy+page.server.ts files. This leads to multiple errors in VS Code. One is 'the file is newer...' (which can be disabled with "files.saveConflictResolution": "overwriteFileOnDisk") and the other is about EACCES permission when running SvelteKit in Docker which can't get worked-around (you can of course manually discard that message every time it pops up but there's no way to stop this behavior permanently, i.e. excluding files in VS Code or so).

Reproduction

I created a SvelteKit starter project, added a +page.server.ts but I couldn't get SvelteKit to generate these proxy+page.server.ts files. When are these created or what causes their creation?

Once I know, I am happy to create a repo.

Logs

Error in VS Codes after trying to refactor:
Failed to save 'proxy+page.server.ts': Unable to write file 'vscode-remote://wsl+ubuntu/home/[...]/.svelte-kit/types/src/routes/[...]/proxy+page.server.ts' (NoPermissions (FileSystemError): Error: EACCES: permission denied, open '/home/u/[...]/.svelte-kit/types/src/routes/[...]/proxy+page.server.ts')

System Info

WSL2 with Ubuntu 22.04.1
Node 18
@sveltejs/adapter-node 1.1.6
@sveltejs/kit 1.3.10
VS Code, tested without any plugin | with the Svelte plugin | with the Svelte and Prettier plugin
Exactly the same with Neovim and coc-vim

Severity

serious, but I can work around it

Additional Information

I posted this here and not in the lang tools repo because there is also another issue in this repo related to these proxy files.

Start by reproducing the refactoring in a SvelteKit starter project under WSL2 with the reported VS Code, Node 18, and adapter versions, then determine what causes proxy+page.server.ts files to be generated. Done means refactoring no longer tries to save those generated files or produces the reported conflict and EACCES errors.