[REG 4.8.6->5.5] QUrl::toLocalFile() doesn't work

Just try to transform a QUrl to a string with toLocalFile() like this:

QUrl url("/home/me/filename.txt");
qDebug() << url << "\n" <<  url.toLocalFile();

You get with Qt 4.8.6

QUrl( "/home/me/filename.txt" )
"/home/me/filename.txt"

With Qt 5.5:

QUrl("/home/me/filename.txt")
""

Qt 5.5 returns only an empty string.