[Windows] Non-native QFileDialog behaves strangely when creating a folder with a trailing space

Code

#include <QApplication>
#include <QFileDialog>

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    QFileDialog d;
    d.setOption(QFileDialog::DontUseNativeDialog, true);
    d.setFileMode(QFileDialog::Directory);
    d.exec();

    return 0;
}

Steps to reproduce

1. Build and run the code above
2. In the dialog, click the "New Folder" button
3. Enter a name with a trailing space (like "Bad ") and accept it
4. Click on a folder
5. Try to delete "Bad "

Unexpected Outcomes

• (Step #3) "Bad " does not have a folder icon in the non-native QFileDialog, unlike other folders
• (Step #4) The non-native QFileDialog shows two separate entries for the newly-created folder, one with the trailing space and one without. Clicking on the former entry will highlight both entries.
• (Step #5) If we try to delete "Bad " via the non-native QFileDialog, we get a confirmation dialog but nothing happens if we accept

Notes
See https://superuser.com/questions/565334/rename-delete-windows-x64-folder-with-leading-and-trailing-space - Windows doesn't really like folders with trailing spaces. Fortunately, there are (convoluted) ways to remove them.