This is pretty much the same as !18305 (merged) but for Dozen. See the other MR for a more detailed description. There's also one minor fix in here that I could split out if people want to land it separately.
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
This is pretty much the same as !18305 (merged) but for Dozen. See the other MR for a more detailed description. There's also one minor fix in here that I could split out if people want to land it separately.