Cannot import a file with "$$" in the name with package.json imports in the dev server #23637

Describe the bug

When a package uses wildcard subpath imports/exports (e.g. "#*": "./src/*"), the string "$$" gets replaced with "$" (likely because of some string substitution logic treating "$$" as something special).

Those imports are broken in dev - but they do work on a full build!

Reproduction

https://stackblitz.com/edit/vitejs-vite-uaefh2k8?file=src%2Fmain.js

Steps to reproduce

1. package.json: { "type": "module", "imports": { "#*": "./src/*" } }
2. Create src/test$$.js with export {};
3. In src/main.js: import "#test$$.js"; console.log("Hello");
4. Run vite (dev) and load the page: Failed to resolve import "#test$$.js", because it looks for src/test$.js
5. Run vite build: resolves correctly. Importing "./test$$.js" in dev works. As does importing "#test.js" (if the file exists).

System Info

System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 22.22.3 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    vite: ^8.3.1 => 8.3.2

Used Package Manager

npm

Logs

[plugin:vite:import-analysis] Failed to resolve import "#test$$.js" from "src/main.js". Does the file exist?

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a Vite issue and not a framework-specific issue. For example, if it's a Vue SFC related bug, it should likely be reported to vuejs/core instead.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.