UI Run button does not use launch.json configs properly

[JackCaster]

Type: Bug

Behaviour

Expected vs. Actual

I want to debug a Python module. One debug configuration is set to run the module ("Python: Module"), but I also have other configurations (e.g., "Python: Current File"). In the Run and debug section, I can select one of the configuration and launch it with the shortcut F5 or from the menu Run > Start debugging. The button on the upper right side of the UI, instead, will not pick up the currently selected configuration. It will only use the first configuration with the purpose "debug-in-terminal", in this case "Python: Module"

Steps to reproduce:

I created a launch.json file like

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Python: Current File",
            "type": "python",
            "request": "launch",
            "program": "${file}",
            "console": "integratedTerminal",
            "justMyCode": true
        },
        {
            "name": "Python: Module",
            "type": "python",
            "request": "launch",
            "module": "<your module name>",
            "justMyCode": true,
            "purpose": [
                "debug-in-terminal"
            ]
        }
    ]
}

Now, I can select one of the two configurations in the Run and debug window and launch it via F5 or Run > Start debugging. Instead, the run button will always run the "Python: Module" one, regardless of which one I select in the drop-down menu. If I add

 "purpose": [
                "debug-in-terminal"
            ]

also to the "Python: Current File" configuration, that's the one that will be always run.

Diagnostic data

• Python version (& distribution if applicable, e.g. Anaconda): 3.10.12
• Type of virtual environment used (e.g. conda, venv, virtualenv, etc.): Global
• Value of the python.languageServer setting: Default

Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)

XXX

User Settings

languageServer: "Pylance"

testing
• pytestArgs: "<placeholder>"
• pytestEnabled: true

Extension version: 2023.20.0
VS Code version: Code 1.84.2 (1a5daa3a0231a0fbba4f14db7ec463cf99d7768e, 2023-11-09T10:51:52.184Z)
OS version: Windows_NT x64 10.0.19045
Modes:
Remote OS version: Linux x64 5.15.90.1-microsoft-standard-WSL2

[karthiknadig]

Duplicate of #11812