QFileInfo::symLinkTarget() returns an incorrect path on a symlink for a shared folder on WindowsQFileInfo::symLinkTarget() returns an incorrect path on a symlink for a shared folder on Windows
On Windows 10, for a symbolic link created for a shared directory using "MKLINK /D", QFileInfo::symLinkTarget() returns an incorrect path. For a shortcut pointing to the symbolic link, QFileInfo::canonicalFilePath() / QFileInfo::canonicalPath() returns an incorrect path.
Steps to reproduce:

1. Create a directory named as "c:\test_shared". Put some directories and text file under the ‘test_shared’ directory.
2. Make the ‘test_shared’ directory as a shared directory. Go to properties of ‘test_shared’ directory, Sharing tab, Click on ‘Share…’
3. Now we will have a UNC path for ‘test_shared’ directory ( UNC Path: [ https://msdn.microsoft.com/en-us/library/cc227007.aspx|https://msdn.microsoft.com/en-us/library/cc227007.aspx] ). For example for a machine named ‘foo’, the UNC path for ‘test_shared’ is ‘//foo/test_shared’
4. Create a symlink on "c:\" for ‘//foo/test_shared’. Open a command prompt, and run "MKLINK /D c:\link_to_share \\foo\test_shared"
5. Create a shortcut on "c:\" to ‘link_to_share’. Right click on ‘link_to_share’ and select ‘Create shortcut’. This creates ‘c:\link_to_share – Shortcut’
6. Then try the following code
      

       QString paths[2] = {
           QLatin1String("C:\\link_to_share"),
           QLatin1String("C:\\link_to_share - Shortcut.lnk")
       };
       QFileInfo info1(paths[0]); 
       qDebug() << info1.filePath() << info1.symLinkTarget();
       QFileInfo info2(paths[1]);
       qDebug() << info2.filePath() << info2.canonicalFilePath();
   

   Expected results:
   "C:/link_to_share" "//foo/test_shared"
   "C:/link_to_share - Shortcut.lnk" "//foo/test_shared"
   Output:   
   "C:/link_to_share" "C:/UNC/foo/test_shared"
   "C:/link_to_share - Shortcut.lnk" "C:/UNC/foo/test_shared"