QFileInfo::canonicalPath() produces wrong results for NTFS junction points

With Qt 4.6.0 QFileInfo::canonicalPath() no longer produces the right output for NTFS junction points.

My configuration (both Win2k and Win7x64) is:

• (hd0,0) -> C:
• (hd0,1) -> D: AND C:\Users\Username

I. e. (hd0,1) is also mounted on my user's profile directory.
When I try to get a canonical path of some C:\Users\Username\path\to\file the result is Volume

", so during the canonicalization the filename becomes as said above. With previous Qt version this was not true, it was not considered as a symlink.
I am not sure whether that kind of path should be considered a symlink or not, anyway now it does not work.
I have also found this page http://support.microsoft.com/kb/205524/en-us that says that the true target should be \\?\Volume

, with the leading \ \ ? \

For now I found a workaround by reverting the QFileInfo implementation back as the 4.5.3 one. Actually I simply commented out these four lines in file src/corelib/io/qfsfileengine_win.cpp

// Lines 1585 - 1586:
//            if ((type & LinkType) && d->isSymlink())
//                ret |= LinkType;

// Lines 1699 - 1700:
//        else if (d->doStat() && d->isSymlink())
//            ret = readSymLink(d->filePath);