Going to be updating this instance shortly. Onto our own fork. https://github.com/nrdli/mastodon
Ok, so there's actually a whole bunch that should get migrated. I will need to dig through the code to figure out all of the different possible types/subtypes/sizes to upload (for completeness in the tool).
A task for tomorrow, as I can feel myself getting tired and sloppy. Not a time to be messing with production data.