provideConfigurations is called with duplicate URI:s

[HampusAdolfsson]

Environment

• OS and Version: WSL Ubuntu 22 / Windows 11
• VS Code Version: 1.89.0-insider
• C/C++ Extension Version: 1.20.0 pre-release
• If using SSH remote, specify OS of remote machine:

Bug Summary and Steps to Reproduce

Bug Summary:
When cpptools calls provideConfigurations of a custom configuration provider, the uris parameter always contains the same uri twice:

This first appears in version 1.19.5 -- if I downgrade to 1.19.4 it works as expected.

Steps to reproduce:

1. Run an extension that registers a CustomConfigurationProvider
2. Put a breakpoint in your CustomConfigurationProvider's provideConfigurations.
3. Open a file to trigger cpptools to query your extension for the file's intellisense configuration.
4. Look at the uris parameter passed in -- it contains the same URI that you just opened twice.

Expected behavior:
Each uri should only appear once.

Configuration and Logs

Relevant section from the `C/C++` output channel (here using CMake Tools):

LSP: (received) textDocument/didOpen: file:///home/hampusad/EW%20Projects/CMakeTest/func.c
LSP: (invoked) cpptools/queryTranslationUnitSource: file:///home/hampusad/EW%20Projects/CMakeTest/func.c (id: 7)
LSP: (invoked) textDocument/didOpen: file:///home/hampusad/EW%20Projects/CMakeTest/func.c
Populating file name cache...
LSP: (received) cpptools/didChangeVisibleTextEditors
LSP: (invoked) cpptools/didChangeVisibleTextEditors
Intellisense update pending for: file:///home/hampusad/EW%20Projects/CMakeTest/func.c
Done populating filename cache. Elapsed time: 28 ms
LSP: Sending response (id: 7)
Custom configurations received:
  uri: file:///home/hampusad/EW%20Projects/CMakeTest/func.c
  config: {
  "includePath": [],
  "defines": [],
  "compilerPath": "/usr/bin/gcc",
  "compilerArgs": [],
  "compilerFragments": [
    "-g",
    "--debug"
  ]
}
  uri: file:///home/hampusad/EW%20Projects/CMakeTest/func.c
  config: {
  "includePath": [],
  "defines": [],
  "compilerPath": "/usr/bin/gcc",
  "compilerArgs": [],
  "compilerFragments": [
    "-g",
    "--debug"
  ]
}

Other Extensions

No response

Additional context

No response

[bobbrow]

@Colengms do you know what might have caused this?

[sean-mcmanus]

@HampusAdolfsson Fixed with https://github.com/microsoft/vscode-cpptools/releases/tag/v1.20.2 .