Extra content in /root/.ssh/authorized_keys is copied also
In the event /root/.ssh/authorized_keys contains other content (such as a "command=" entry for the key ref), then the Sympl user will be similarly restricted on first logging in.
Not necessarily a bug, but we may want to think about excluding these entries or handling them differently.
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information