There is a Release b3830 "The Drop That Contained the Sea" (digital media) which has a nice, high-res Cover Art image supplied by the Release Artist. Another Release, 6ba3f (CD), from the same Release Group c98ba, has identical cover art on the physical Release jewel case. However, no-one has uploaded the nice high-res image to Release 6ba3f (CD), so it's getting cover art from Amazon instead.
I could fix this by downloading the original-resolution image from Release b3830, then uploading it to Release 6ba3f. But is there an easier way?
Is there an easy way to tell MusicBrainz that the same Cover Art Archive image applies to two different Releases? Alternatively, is there a way to tell MusicBrainz to copy a Cover Art Archive image to another Release, short of downloading then uploading?