Fix QFileSelector::select if called with QUrl and scheme "assets"

QFileSelector::select(QUrl) will use ":" for scheme "qrc" to
call QFileSelector::select(QString). Scheme "assets" needs
to remain "assets:" for select(QString), otherwise it won't
recognize the file in "assets".

Following failed because it was passed as ":/qml/example.qml"
to select(QString):
    select(QUrl("assets:/qml/example.qml"));

This will call select(QString) to:
    select("assets:/qml/example.qml");

Change-Id: I6bdeed6bb67992498ae3b8e1273c20e70049381a
Task-number: QTBUG-50435
Reviewed-by: BogDan Vatra <bogdan@kdab.com>

0 files changed, 0 insertions, 0 deletions