Pressing Esc does not cancel debugging

[kzhui125]

1. Debug - Start Debugging

2. press ESC to cancel

But python debugging will be started.

[karrtikr]

Closing in favor of microsoft/vscode#85078

[karrtikr]

Turns out it is an extension issue.

The issue seems to be that the resolveDebugConfiguration of the python extension opens the quickPick. The quickPick is cancelled by the user, and the resolveDebugConfiguration should return undefined. However the resolveDebugConfiguration does not return undefined it returns the config object and VS Code happily continues with debugging.

Prescribed solution

Return undefined when no quick pick option is selected.