At the tail end of my install the installer gave a traceback. It was trying to install the kernel, perhaps the kernel %post had an error and this led to the traceback... yum-3.2.14-9 was used.
Created attachment 302583 [details] anaconda dump
-9 doesn't have the changes that went upstream and is instead identical to -8. Looks like just a missed patch commit.
-10 has the patch. It was my mistake.
And Jesse just finished an install with -10