If you have multiple cronjobs on a server associated with different sites, and you edit one of them on the site level, suddenly all the other cronjobs from the other sites appear in the list after clicking "Save". They disappear if you refresh the page.
After clicking "Save":
Dennis moved item to board Planned10 months ago
James Cocker moved item to project Site Level Requests10 months ago
James Cocker created the item10 months ago