PathLineEdit widget does not show a complete list of auto completions

Once the user starts typing a part of a path, an auto completion list appears. However, the proposals are only limited to very few files. This has probably something to do with the current root directory of the underlying QFileSystemModel, used for QCompleter. It is probably initialized with the current directory. It seems that this bug exists since many versions of itom, both for Win10 and Win11.