The ticket was marked as “Cannot Reproduce” which means that there was either a fix submitted before this ticket that I’m not directly aware of or something else that broke functionality that was corrected along the way. So there is no direct GH commit or CL to reference with this particular ticket.
I just checked this in Preview 4 and the ribbons are working as I would expect them to when packaged. I’m using the P_Ribbon_Trails asset from Content Examples as my test case for this since it was easy enough to see the original reported.