`_creator` isn't included when exporting/importing a Space

(Bug, Closed -> Fixed, Priority: Critical, Test Status: Needs Testing , Reported By Bad Link: Thing 3y284oe not found, )
Import and Export
Summary: Probably nothing subtle here -- I believe we simply aren't exporting it, and aren't looking for it during import.
There are deeper problems involved here, of course -- in particular, I believe we aren't currently exporting Person records, so it's not clear whether _creator links would have anything to hook to. This would need some investigation in order to figure out how to actually make it useful.