Cleard up uncertainty on FormID recycling
;Suppose that you delete an object. Can the formid that was assigned to it be assigned to a newly created object?
;What's up with GMSTs?
:Many GMSTs have formids == 0, yet it's possible to change the EditorId. If you try to change the value of a GMST that has formid == 0, a new formid will be assigned. I suspect that GMSTs are an exception -- i.e., that unlike every other data object, their formids are not used.