Correct. Elasticsearch never alters the original JSON source, so what you send is what you get back in _source.
Mostly a confusion of terms, but technically "Ted" will be indexed twice. When you add a multifield, what you're doing is telling Elasticsearch to index the field different ways, using different analyzers. So the value will be added into an inverted index for each extra multi-field that you add.
It'll still only show up once in the _source, but internally it will be indexed multiple times to support the multi-field.