failing update Smart Groups for installs with none
I got past an upgrade error by commenting out lines 96 through 118 in CRM/Upgrade/Incremental/php/FiveTwenty.php
The the update was repeatedly failing on this install which had no smart groups, had never had smart groups, and was probably five years old or more. I have no idea how to reproduce the issue reliably but if there isn't already a failsafe in the code for installs which have no smart groups to update, please add that failsafe.
Peace out!
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information