Adding mods to a magazine

This has been broken for awhile now, just wondering if there is an alternative method or some indication when it's going to be fixed?

As magazines get larger, they're going to require additional mods to help moderate them. Currently it doesn't seem possible to add anyone as any time you go to the moderator tab on a magazine, it just gives an error. I did once, for 30 seconds get a page to load, but haven't seen it since.