Considering remix provenance was mentioned again in this week's update. I decided to test again to see if it was fixed. It is not. I tested by using the Reuse prompt & resources option on this image, creating two images. The first Changed nothing. The second only set the aspect ratio to lanscape because the Reuse prompt & resources option still switches to square when remixing images made on site. Neither show as qualifying for the free entry into the original's remix gallery.
I will continue to post a version of this article with another test each time remixes are mentioned in the weekly update until it is fixed, or I have left the site.