Bug 474695

SUMMARY
I want to import C++ code using umbrello5 git-2.37.90-09bb3b4d7
When clicking on a directory, I noticed that no files are selected on the subdirectory even when I click on "include subdirectories".

After digging into the code, I found that this function was disabled in umbrello/codeimpwizard/codeimpselectpage.cpp
void CodeImpSelectPage::files(const QString& path, QStringList& filters)

When debugging void CodeImpSelectPage::treeClicked(const QModelIndex& index),
I saw that rows is always 0 in this line:
int rows = indexModel->rowCount(index); # line 241

STEPS TO REPRODUCE
1. Click on Code->importing wizzard
2. Click on include subdirectories
3. Click on a directory containing hpp files.

OBSERVED RESULT
Number of files remains at 0.
The hpp files in the subdirectories are not selected.

EXPECTED RESULT
Number of files should be updated.
The hpp files in the subdirectories should be selected.

SOFTWARE/OS VERSIONS
Linux devuan: daedalus 
KDE frameworks: 5.103.0
Qt Version: 5.15.8

ADDITIONAL INFORMATION
xcb window system