[Bug]: Memory leak when importing multiple @aws-sdk libraries

[stefanonardo]

Version

29.7.0

Steps to reproduce

1. Clone my repo at https://github.com/stefanonardo/jest-leak-test
2. npm install
3. npm test -- --detectLeaks
4. It should detect leaks

Expected behavior

It should not detect any leak

Actual behavior

If you take a heap snapshot at the end of the test you'll see that the garbage collector is not removing the the imported modules at the end of a test suite.

Additional context

A heap snapshot at the end of the tests does indeed show duplicate imports. The repository I provided is a minimal example: if you remove one of the imports, Jest no longer detects any memory leaks.

This issue occurred to me with the aws-sdk libraries, but it might not be strictly related to them. I could not pinpoint what specific characteristic of the aws-sdk libraries causes this.

Environment

System:
    OS: macOS 14.5
    CPU: (10) arm64 Apple M1 Max
  Binaries:
    Node: 20.11.0 - ~/.nvm/versions/node/v20.11.0/bin/node
    Yarn: 1.22.21 - ~/.nvm/versions/node/v20.11.0/bin/yarn
    npm: 10.2.4 - ~/.nvm/versions/node/v20.11.0/bin/npm
  npmPackages:
    jest: ^29.7.0 => 29.7.0

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