I haven't actually tried this yet, but I'm sure that when a content type is being deleted that we need to build some specific handlers for riat. I have no idea what the "sane" defaults for this might be, and truthfully, it may be a better idea to simply remove the delete links for any node type involved in a relationship chain.
Currently if a node type were deleted, any views working with that node type should immediately fail, child/descendant tracking SHOULD all still work, as all we've really lost is the "type" definition in the node table, but we need to determine what we want to do handling wise for this.
Eclipse
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Comment #1
eclipsegc commentedWhen a node type is deleted the riat menu entry associated with it (that hides or shows the content type in the create content menu) needs to be deleted as well to prevent confusion.