QFileSystemWatcher fileChanged signal uses the wrong path when a watched file is moved and added again

On Linux using QFileSystemWatcher with inotify backend when moving some files and adding them again to the watcher (with the new name) before all the fileChanged signals are emitted, QFileSystemWatcher emits the remaining signals with the new filename instead of the old one.

This bug doesn't apply on Qt 5.1.0 for Windows and Mac

The attached program reproduces the bug. To run it:

qmake -project "QT += testlib" && qmake && make