QML Images switched from using QPixmapCache, no way to clear now

Image items used to be cached using global QPixmapCache, now it does its own cache and there is no way to clear cche for any particular image anymore. For dymanic use, like generated thumbnails, there should be a way to clear Image cache and pickup new changed image, the problem if the name stays but underlying image got changed.
At least one public function to clear cche by name would work fine, similar to QPixmapCache::remove or make a flag in Image, bool: cached, so i can turn off cahcing for some Images if i know they may change