FileBrowser with canSelectDirectories crash in BigSur

[kunz]

Looks like the same problem here but with macOS BigSur:

JUCE 6.0.8 BUG: FileChooser Win Native not working

Hi! I just updated to JUCE 6.0.8. And I found out that it breaks the native Windows file chooser. Once I select a folder in the chooser, the UI freezes and I have to force quit the application. The bug is easy to reproduce with a test application. (See also attached example application). More details: I am using the asynchronous version of the FileChooser class. I.e. I am calling FileChooser::launchAsync() I can see that the file chooser successfully returns to run the lambda. But once th…