Comment 3 for bug 1223042

We have the same backtrace and crash, without using any camera functionality (though we do set the source for an image to "" at one point.) We'll test whether skipping the empty string fixes it.

The image is loaded through an ImageProvider through C++, and is dynamically changed without depending on the ID, the empty string is used to trigger a refresh from the Image, as it requests the image from the provider only if the URI has changed.