Generic problem reported upstream: https://secure.phabricator.com/T7661
I changed the description of #Continuous-Integration but the log claims:
Krinkle edited Description.
Krinkle unchecked Is Sprint.
Krinkle edited this Project.
The "Is Sprint" field did not previously exist or was not disabled/enabled, whatever. As far as I'm aware it was never enabled and that's still the case. I certainly didn't uncheck anything.