Does this rule already exist? Should it?
Matt: do we have the rule that if a field is deprecated on a type then it must also be deprecated on any interface?
Lee: good question
Ivan: no, we don't have this rule.
Stephen: sounds like another PR; it probably should - right?
Lee: yeah, it's surprising that hasn't come up in the Facebook API.
Matt: interface fields tend to be Hack/PHP; everyone gets the same implementation (same code executed) - deprecating it deprecates it everywhere.
ACTION - validate this.
Note: Action Item issues are reviewed and closed during Working Group
meetings.