Mac: Dragging files with some special file names does not work correctly

Dragging files from Finder on the Mac to a Qt application does not work as expected.

When dragging a file named "/.txt" into a Qt application the file name will be ":.txt" from inside the Qt application.

When dragging a file named "\.txt" from the Qt application to Finder the file is not accepted in Finder. The same happens for a file named "file;name.txt".

When dragging a file named ";.txt" (from folder "test drag1") to Finder (to folder "test drag2"). The file is copied, but the folder "test drag1" is copied to the folder "test drag2" too.