Don't load bad image infinitely.

Telegram/SourceFiles/ui/image/image_source.cpp

@@ -275,12 +275,16 @@ QImage RemoteSource::takeLoaded() {
 		return QImage();
 	}
 
-	auto data = _loader->imageData(shrinkBox());
+	if (_loader->cancelled()) {
-	if (data.isNull()) {
 		_cancelled = true;
 		destroyLoader();
 		return QImage();
 	}
+	auto data = _loader->imageData(shrinkBox());
+	if (data.isNull()) {
+		// Bad content in the image.
+		data = Image::Empty()->original();
+	}
 
 	setInformation(_loader->bytes().size(), data.width(), data.height());