SUMMARY
when you fetch a project from kdevelop it does not parse the name of the folder from git correctly, for example you clone something like http://www.example.com/merchant.git  the generated folder is called "merchant.git" instead of "merchant" 

additional info below 

STEPS TO REPRODUCE
1. fetch a project 
2. enter a url https://github.com/Luwx/Lightly.git
3. and get project  

OBSERVED RESULT

the workingDir text box is adds a folder name called "Lightly.git" 


EXPECTED RESULT
the workingDir text box is adds a folder name called "Lightly" with no .git extension on the folder 

SOFTWARE/OS VERSIONS 
Linux/KDE Plasma: 5.20.3
(available in About System)
KDE Plasma Version: 5.76.0
KDE Frameworks Version: 
Qt Version: 5.15.1

ADDITIONAL INFORMATION
the parsing problem is probably in 
kdevelop/kdevplatform/shell/projectsourcepage.cpp

line 262 

probable fix  
>       QString projectName = m_locationWidget->projectName();
>        projectName = projectName.left(projectName.lastIndexOf(QStringLiteral(".")));
>       QUrl current = QUrl::fromUserInput(currentUrl + projectName);